History of reporting requirements: National Pollutant Release Inventory

No changes

Third year of multi-year notice.

No changes

Second year of multi-year notice.

Adjustment to a reporting threshold

Hydrogen cyanide (CAS RN 74-90-8) was deleted from Part 1, Group A, and added to Part 1, Group B, of the substance list with a MPO threshold of 1,000kg and 0.1% concentration.

C.I. Basic Green 4 (CAS RN 569-64-2) was deleted from Part 1, Group A, and added to Part 1, Group B, with a MPO threshold of 100kg and 1% concentration threshold. C.I. Basic Green 4 was also renamed Malachite Green.

Ethylene oxide (CAS RN 75-21-8) was deleted from Part 1A and added to Part 1B of the NPRI substance list, with a MPO threshold of 1kg and a 0.1% concentration.

Change to reporting requirements

The reporting requirements for ethylene oxide now apply to activities related to the education and training of students.

Modification to a listed substance

C.I. Basic Green 4 (CAS RN 569-64-2) was renamed Malachite Green.

Deletion from the substance list

2-Mercaptobenzothiazole (CAS RN 149-30-4) was deleted from Part 1, Group A, of the substance list.

Addition to the substance list

Additions to Part 1, Group B, with a 100kg manufactured, processed, or otherwise used (MPO) threshold and 1% concentration threshold for each substance:

• Basic Violet 3 (CAS RN 548-62-9)
• Basic Violet 4 (CAS RN 2390-59-2)
• Basic Blue 7 (CAS RN 2390-60-5)
• MAPBAP Acetate (CAS RN 72102-55-7)

A group of 20 benzothiazoles that can form 2-mercaptobenzothiazole (MBT), including MBT, was added to Part 1, Group B, of the substance list with a 100kg MPO threshold and a 0.1% concentration by weight threshold.

Ninety-two long-chain aliphatic amines were added to Part 1, Group B, of the substance list with a MPO threshold of 5,000kg and a concentration threshold of 0.1% by weight.

Free cyanide, cyanide salts and cyanide complexes were added to Part 1, Group B, of the NPRI substance list with a 1,000kg MPO threshold and 0.1% concentration by weight threshold.

One hundred sixty-three per- and polyfluoroalkyl substances (PFAS) were added to a new Part 1, Group C, of the substance list. Facilities that meet the employee threshold and that manufacture, produce, or otherwise use 1kg or more of a listed PFAS at a concentration of 0.1% by weight or more will be required to report quantities of that PFAS that are released, disposed of and recycled.

No changes

Third year of multi-year notice.

No changes

Second year of multi-year notice.

Change to reporting requirements

Changes that apply to all substances:

• facilities are now required to indicate the reason a substance is being reported for the first time
• facilities are now required to report any applicable identification number(s) for their provincial or territorial operating permit, approval, authorization, license, or certificate or any other applicable provincial or territorial environmental program identifier(s)
• two new bases of estimate have been added that facilities can use, remote quantification and speciation profile
• the names of three categories of air releases have been changed:
  • “storage or handling releases” has been changed to “storage tank and related handling releases"
  • "spills” has been renamed to “spills or other accidental releases”
  • “road dust” has been renamed to “unpaved road dust”

  Change to an exemption for Parts 1-3 substances:

  • The exemption from reporting Parts 1-3 substances from “research and testing” activities has been re-worded to “research and development”

  Changes to the requirements for reporting Part 4 substances:

  • the stack height threshold has been lowered from 50 m above grade to 25 m above grade
  • the stack air release thresholds have been increased for six of the seven criteria air contaminants (CAC)
  • a stack exit temperature threshold has been added
  • exemptions from reporting of individual stacks for certain types of stacks and facilities have been added
  • a requirement to break down individual stack releases into several categories of combustion and fuel use activities, and to report the fuel types and basis of estimate associated with each category have been added
  • “volatile organic compounds” has been renamed to “volatile organic compounds (total)”
  • the reporting of stack or point release of PM2.5, PM10 or total particulate matter must indicate if their reported releases include condensable particulate matter

  Changes to the requirements for reporting Part 5 substances:

  • the 10-tonne total volatile organic compounds (VOCs) threshold no longer applies to reporting speciated VOCs
  • a speciated VOC must be reported if 1 tonne or more of that speciated VOC is released from the facility
  • the 5-tonne total VOCs threshold no longer applies to reporting speciated VOCs from an individual stack
  • a speciated VOC must be reported for an individual stack if 0.25 tonnes or more of that speciated VOC is released from the stack
  • a basis of estimate must be provided for speciated VOCs

Addition to the substance list

Chlorhexidine and its salts (CAS RN 55-56-1) was added to Part 1B

Deletion from the substance list

Two substances were removed from the Part 1A list:

• Hexachlorocyclopentadiene (CAS RN 77-47-4)
• Methyl iodide (CAS RN 74-88-4)

Change to reporting requirements

Facilities that report pollution prevention activities will need to link the activities to specific substances.

Facilities will no longer need to respond to questions about whether their pollution prevention plan will address substances, energy or water conservation, nor whether the plan was updated during the calendar year.

Addition to the substance list

One substance was added to Part 1A:

• Naphthenic acid fraction compounds (and their salts)

Three substances were added to Part 1B (with reduced thresholds):

• PREPOD (CAS RN 68412-48-6)
• BENPAT (CAS RN 68953-84-4)
• 26 azo disperse dyes with molar weights below 360 g/mol

Deletion from the substance list

Two substances were removed from the Part 1A list:

• C.I. Disperse Yellow 3 (CAS RN 2832-40-8)
• Decabromodiphenyl oxide (CAS RN 1163-19-5)

Three volatile organic compounds were deleted from the Part 5 list:

• Adipic acid (CAS RN 124-04-9)
• Heavy alkylate naphtha (CAS RN 64741-65-7)
• White mineral oil (CAS RN 8042-47-5)

Modification to a listed substance

Propylene glycol methyl ether acetate (PGMEA) was moved from the Other Groups and Mixtures section to the Isomer Groups section of the Part 5 list. All isomers of PGMEA must now be reported: alpha-PGMEA (CAS RN 108-65-6), beta-PGMEA (CAS RN 70657-70-4), and mixtures of PGMEA (CAS RN 84540-57-8).

Change to reporting requirements

“Production of iron ore pellets using an induration furnace” was added to the list of activities for reporting of dioxins/furans and hexachlorobenzene (Part 3 substances).

Toxicity equivalency factors were updated for the following dioxin and furan congeners:

• 1,2,3,7,8-Pentachlorodibenzo-p-dioxin (CAS RN 40321-76-4)
• Octachlorodibenzo-p-dioxin (CAS RN 3268-87-9)
• 2,3,4,7,8-Pentachlorodibenzofuran (CAS RN 57117-31-4)
• 1,2,3,7,8-Pentachlorodibenzofuran (CAS RN 57117-41-6)
• Octachlorodibenzofuran (CAS RN 39001-02-0)

No changes

Second year of multi-year notice.

Addition to the substance list

Two substances were added to the Part 1B list with a mass threshold of 1,000 kg and concentration threshold of 1%:

• Chlorinated alkanes, long-chain, C_nH_xCl_(2n+2–x), 18 ≤ n ≤ 20
• Chlorinated alkanes, medium-chain, C_nH_xCl_(2n+2–x), 14 ≤ n ≤ 17

Six substances or groups of substances were added to the Part 5 (Speciated VOCs) list:

• Analytically unresolved hydrocarbons (C₁₀ to C₁₆₊)
• Ethyltoluene (all isomers)
• Methylcyclopentane (CAS RN 96-37-7)
• Other glycol ethers and acetates (and their isomers)
• Propyl acetate (all isomers)
• n-Propyl alcohol (CAS RN 71-23-8)

Change discussed but not implemented

Addition of radionuclides was discussed but was not implemented.

Deletion from the substance list

Ten substances were removed from the Part 1A list:

• Alkanes, C_6-18, chloro (CAS RN 68920-70-7)
• Alkanes, C_10-13, chloro (CAS RN 85535-84-8)
• C.I. Solvent 14 (CAS RN 842-07-9)
• 3-Chloropropionitrile (CAS RN 542-76-7)
• Crotonaldehyde (CAS RN 4170-30-3)
• 2,4-Diaminotoluene (and its salts) [CAS RN 95-80-7]
• 2-Methylpyridine (CAS RN 109-06-8)
• -Nitroaniline (CAS RN 100-01-6)
• Nitrobenzene (CAS RN 98-95-3)
• 2,4,4-Trimethylhexamethylene diisocyanate (CAS RN 15646-96-5)

Sixteen volatile organic compound species or isomer groups were deleted from the Part 5 list:

• Aniline (and its salts) [CAS RN 62-53-3]
• Anthraquinone (all isomers)
• Chlorobenzene (CAS RN 108-90-7)
• Creosote (CAS RN 8001-58-9)
• Diethylene glycol butyl ether (CAS RN 112-34-5)
• Diethylene glycol ethyl ether acetate (CAS RN 112-15-2)
• Dihydronapthalene (all isomers)
• Dodecane (all isomers)
• Ethylene glycol butyl ether acetate (CAS RN 112-07-2)
• Ethylene glycol hexyl ether (CAS RN 112-25-4)
• 2-Methyl-3-hexanone (CAS RN 7379-12-6)
• Methylindan (all isomers) [CAS RN 27133-93-3]
• Phenyl isocyanate (CAS RN 103-71-9)
• Propylene glycol butyl ether (CAS RN 5131-66-8)
• Terpenes (all isomers) [CAS RN 68956-56-9]
• Trimethylfluorosilane (CAS RN 420-56-4)

Modification to a listed substance

The CAS RN for vanadium (and its compounds, except when in an alloy) was removed. Multiple CAS RNs can apply to this substance.

Benzo[a]phenanthrene is listed by its more common name, chrysene.

The listing of n-butyl acetate was changed to butyl acetate (all isomers) and includes three isomers: n-butyl acetate (CAS RN 123-86-4), isobutyl acetate (CAS RN 110-19-0), and sec-butyl acetate (CAS RN 105-46-4).

Adjustment to a reporting threshold

Anthracene was moved from Part 1 A to Part 2. The 10 tonne mass reporting threshold was reduced to 50 kg for total polycyclic aromatic hydrocarbons, including anthracene, and 5 kg for reporting anthracene itself.

Facilities that are subject to the Chromium Electroplating, Chromium Anodizing and Reverse Etching Regulations must report releases, disposals and transfers for recycling of hexavalent chromium (and its compounds), regardless of the number of employees and regardless of the 50 kg mass threshold and 0.1% concentration threshold.

Change to reporting requirements

Facilities classified under the NAICS Canada code 211110 (Oil and gas extraction, except oil sands) excluding compressor stations, with less than 20 000 employee hours, must report for all criteria air contaminants (CAC) and benzene from all sources if the reporting threshold for at least one CAC is met. Light and medium crude oil batteries of an oil throughput equal to or greater than 1900 m3 per year must report volatile organic compounds and benzene emissions from storage tanks, regardless of whether air release thresholds are met.

Facilities that report implementing a pollution prevention plan must report the name of the Pollution Prevention Planning Notice for which the plan was prepared. If the P2 plan was prepared or implemented for another government jurisdiction or program, the name of the jurisdiction, program, or requirement must be reported. Facilities that report not implementing new pollution prevention activities during the year must report any existing barriers to implementing a plan.

Facilities must report mercury and criteria air contaminant releases to air for each electricity generation unit that meet the following two criteria:

1. the unit has a capacity of 25 MW or more
2. the unit distributes or sells to the grid 33% or more of its potential electrical output (during the current or previous years)

Facilities that meet the threshold requirements for unit-level reporting must also provide details about the unit, including:

• unit gross generating capacity
• commissioning year
• technology or fuel type
• whether the unit includes emissions from duct firing or other secondary combustion sources
• air pollutant controls installed and operating on the unit

Facilities must report the following additional information on shutdown periods:

1. if the shutdown period occur at or around the same time in future years
2. if the shutdown is a partial or complete shutdown

Facilities must report the geographical coordinates (latitude and longitude) of a stack in decimal degrees to at least five decimal places. Provincial identification numbers of each stack must also be provided, where applicable.

When total releases of a Part 1A substance are less than one tonne, a facility may choose to report the release as a total without specifying the environmental media (air, water, or land). Facilities are encouraged to report the break down by media, if the information is available.

No changes

Second year of multi-year notice.

Change to reporting requirements

The requirement to report the concentration of substances released to surface waters was added. When a direct discharge to surface waters is reported, the average annual concentration (ppm) of the NPRI substance in the effluent must also be reported. Additional clarification for release estimates made using the method detection limit (MDL) also need to be provided, effective for 2016 reporting. This includes the MDL used in the estimation, where applicable.

Adjustment to a reporting threshold

Cobalt (and its compounds) was moved from Part 1, Group A to Part 1, Group B. The reporting thresholds for cobalt (and its compounds) were lowered to 50 kilograms with a 0.1% concentration threshold for quantities that are manufactured, processed or otherwise used from the original 10-tonne and 1% concentration thresholds.

Deletion from the substance list

Twenty-one substances have been removed from the Part 1, Group A list:

• C.I. acid green 3 (CAS RN 4680-78-8)
• C.I. basic red 1 (CAS RN 989-38-8)
• C.I. direct blue 218 (CAS RN 28407-37-6)
• C.I. food red 15 (CAS RN 81-88-9)
• Calcium cyanamide (CAS RN 156-62-7)
• Chlorendic acid (CAS RN 115-28-6)
• Dimethyl phenol (CAS RN 1300-71-6)
• 2,6-Dinitrotoluene (CAS RN 606-20-2)
• Dinitrotoluene (mixed isomers) (CAS RN 25321-14-6)
• Hexachloroethane (CAS RN 67-72-1)
• Isosafrole (CAS RN 120-58-1)
• p-Nitrophenol (and its salts) (CAS RN 100-02-7)
• Paraldehyde (CAS RN 123-63-7)
• Pentachloroethane (CAS RN 76-01-7)
• o-Phenylphenol (and its salts) (CAS RN 90-43-7)
• Propargyl alcohol (CAS RN 107-19-7)
• p-Quinone (CAS RN 106-51-4)
• Safrole (CAS RN 94-59-7)
• Styrene oxide (CAS RN 96-09-3)
• Tetracycline hydrochloride (CAS RN 64-75-5)
• Vinylidene chloride (CAS RN 75-35-4)

Change discussed but not implemented

Addition of the following substances was discussed but was not implemented:

• 2,2-bis(Bromomethyl)-1,3-propanediol (CAS RN 003296-90-0)
• Glycidol (CAS RN 00556-52-5)
• Methyleugenol (CAS RN 00093-15-2)
• Nitromethane (CAS RN 00075-52-5)
• Phenolphthalien (CAS RN 00077-09-8)
• Tetrafluoroethylene (CAS RN 00116-14-3)
• 1,6-Dinitropyrene (CAS RN 42397-64-8)
• 1,8-Dinitropyrene (CAS RN 2397-65-9)
• 6-Nitrochrysene (CAS RN 07496-02-8)
• 4-Nitropyrene (CAS RN 57835-92-4)

No changes

Second year of multi-year notice.

Addition to the substance list

Two substances were added to the substance list:

• 2-(2-Methoxyethoxy)ethanol (CAS RN 111-77-3)
• Thallium (and its compounds)

Deletion from the substance list

Five substances were deleted from the substance list:

• Allyl chloride (CAS RN 107-05-1)
• C.I. Solvent Orange 7 (CAS RN 3118-97-6)
• 3-Chloro-2-methyl-1-propene (CAS RN 563-47-3)
• Ethyl chloroformate (CAS RN 541-41-3)
• 1-Bromo-2-chloroethane (CAS RN 107-04-0)

Adjustment to a reporting threshold

Eight substances or substance groups have been moved from Part 1A to Part 1B. The mass threshold for these substances was reduced from 10 tonnes, and, in some cases, the concentration threshold was reduced from 1%. The substances are as follows:

• Acrylonitrile (CAS RN 107-13-1)
• Bisphenol A (CAS RN 80-05-7)
• Hydrazine (and its salts) (CAS RN 302-01-2)
• Isoprene (CAS RN 78-79-5)
• Nonylphenol and its ethoxylates
• Toluene-2,4-diisocyanate (CAS RN 584-84-9)
• Toluene-2,6-diisocyanate (CAS RN 91-08-7)
• Toluenediisocyanate (mixed isomers) (CAS RN 26471-62-5)

Quinoline (CASRN 91-22-5) was moved from Part 1A to Part 2 (polycyclic aromatic hydrocarbons). The 10 tonne mass threshold was reduced to 50 kilograms for total polycyclic aromatic hydrocarbons, including quinoline, and 5 kilograms for reporting quinoline itself.

Change discussed but not implemented

The changes below were discussed but were not implemented:

• reporting on all particulate matter size fractions (PM2.5, PM10 and total particulate matter)
• reporting from hydraulic fracturing activities

Change to reporting requirements

The requirement to report releases to land and water, disposals, and transfers for recycling for total reduced sulphur was removed. Only releases of total reduced sulphur to air are required to be reported.

It was made explicit in the notice that underground releases are required to be reported. A requirement was added that the nature of the “other release” to land must be specified.

No changes

Second year of multi-year notice.

Change discussed but not implemented

Addition of naphthenic acids (CAS RN 1338-24-5) was discussed but was not implemented.

Adjustment to a reporting threshold

The reporting thresholds for selenium (and its compounds) were modified to 100 kilograms with a 0.000005% (0.05 ppm) concentration threshold for quantities that are manufactured, processed or otherwise used, from the original 10 tonne and 1% concentration thresholds.

Modification to a listed substance

The listing for p,p'-isopropylidenediphenol (CAS RN 80-05-7) was changed to bisphenol A (CAS RN 80-05-7). Only the substance name was changed; the reporting requirements for this substance were not changed.

Deletion from the substance list

Sulphur hexafluoride (CAS no. 2551-62-4) was deleted from the substance list.

Change to reporting requirements

Provincial identification numbers for facilities in the upstream oil and gas sector are required to be reported.

Information related to updates of the pollution prevention plan, and whether the plan addresses energy or water conservation, is required to be reported.

The requirement to report the Canadian and United States Standard Industrial Classification (SIC) codes was removed.

The requirement to report on anticipated quantities of releases, disposals and recycling for each of the three subsequent years was removed.

Change discussed but not implemented

The changes below were discussed but were not implemented:

• reporting of Part 1 and 2 VOCs from large stacks
• stack reporting requirements for ammonia
• reporting of hexachlorobenzene for the manufacturing of rubber tires
• reporting of dioxins and furans for catalytic reforming operations at petroleum refineries

Change to reporting requirements

Reporting requirements for substances contained in waste rock and tailings disposed of or transferred off-site for disposal were added. These requirements are also applicable to the 2006-2008 reporting years.

Change to reporting requirements

"Titanium dioxide pigment production using the chloride process" was added to the list of activities for reporting of dioxins/furans and hexachlorobenzene.

Addition to the substance list

Total reduced sulphur (TRS), expressed as hydrogen sulphide was added to Part 1A

Nine polycyclic aromatic hydrocarbons (PAHs) were added to Part 2:

• Dibenzo(a,h)acridine (CAS RN 226-36-8)
• Dibenzo(a,e)fluoranthene (CAS RN 5385-75-1)
• Dibenzo(a,e)pyrene (CAS RN 192-65-4)
• Dibenzo(a,h)pyrene (CAS RN 189-64-0)
• Dibenzo(a,l)pyrene (CAS RN 191-30-0)
• 7,12-Dimethylbenz(a)anthracene (CAS RN 57-97-6)
• 3-Methylcholanthrene (CAS RN 56-49-5)
• 5-Methylchrysene (CAS RN 3697-24-3)
• 1-Nitropyrene (CAS RN 5522-43-0)

Modification to a listed substance

Dioxins and Furans as a group of substances was replaced by 17 Speciated Dioxins and Furans, as follows:

• 2,3,7,8-Tetrachlorodibenzo-p-dioxin (CAS RN 1746-01-6)
• 1,2,3,7,8-Pentachlorodibenzo-p-dioxin (CAS RN 40321-76-4)
• 1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin (CAS RN 39227-28-6)
• 1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin (CAS RN 19408-74-3)
• 1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin (CAS RN 57653-85-7)
• 1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin (CAS RN 35822-46-9)
• Octachlorodibenzo-p-dioxin (CAS RN 3268-87-9)
• 2,3,7,8-Tetrachlorodibenzofuran (CAS RN 51207-31-9)
• 2,3,4,7,8-Pentachlorodibenzofuran (CAS RN 57117-31-4)
• 1,2,3,7,8-Pentachlorodibenzofuran (CAS RN 57117-41-6)
• 1,2,3,4,7,8-Hexachlorodibenzofuran (CAS RN 70648-26-9)
• 1,2,3,7,8,9-Hexachlorodibenzofuran (CAS RN 72918-21-9)
• 1,2,3,6,7,8-Hexachlorodibenzofuran (CAS RN 57117-44-9)
• 2,3,4,6,7,8-Hexachlorodibenzofuran (CAS RN 60851-34-5)
• 1,2,3,4,6,7,8-Heptachlorodibenzofuran (CAS RN 67562-39-4)
• 1,2,3,4,7,8,9-Heptachlorodibenzofuran (CAS RN 55673-89-7)
• Octachlorodibenzofuran (CAS RN 39001-02-0)

Change to reporting requirements

Pits and quarries, where annual production is 500 000 tonnes or more, are required to report to the NPRI - regardless of the number of hours worked by employees - provided that they meet the "manufacture, process or other use or release thresholds".

Emissions of total particulate matter, PM10 and PM2.5 from road dust are required to be included in threshold calculations for facilities where on-site annual vehicle travel on unpaved roads is over 10 000 kilometres.

There is the requirement to report on each of the 17 Dioxins and Furans separately, in grams. Previously, 17 dioxin and furan congeners were required to be reported as a group, in grams of toxic equivalents (TEQ).

For polycyclic aromatic hydrocarbons (PAHs), if the 50 kg threshold is met for the total of the listed PAHs, there is the requirement to report only for individual PAHs incidentally manufactured and released, disposed of or transferred off-site for recycling in amounts greater than or equal to 5 kg. All other quantities are to be reported as Total Unspeciated PAHs.

Change discussed but not implemented

The changes below were discussed but were not implemented:

• addition of Calcium oxide, Total reduced sulfur), and Acetone
• modification of requirements for Dioxins, furans, and hexachlorobenzene
• deletion of Ethyl acetate
• changes to the reporting requirements for biosolids

Addition to the substance list

Three additional polycyclic aromatic hydrocarbons (PAHs) were added to Part 2:

• Acenaphthene (CAS RN 83-32-9)
• Acenaphthylene (CAS RN 208-96-8)
• Fluorene (CAS RN 86-73-7)

Fifteen speciated volatile organic compounds (VOCs) were added to Part 5:

• Furfuryl alcohol (CAS RN 98-00-0)
• Tetrahydrofuran (CAS RN 109-99-9)
• Heavy alkylate naphtha (CAS RN 64741-65-7)
• Hydrotreated heavy naphtha (CAS RN 64742-48-9)
• Hydrotreated light distillate (CAS RN 64742-47-8)
• Solvent naphtha light aliphatic (CAS RN 64742-89-8)
• Solvent naphtha medium aliphatic (CAS RN 64742-88-7)
• VM & P naphtha (CAS RN 8032-32-4)
• White mineral oil (CAS RN 8042-47-5)
• Diethylene glycol butyl ether (CAS RN 112-34-5)
• Diethylene glycol ethyl ether acetate (CAS RN 112-15-2)
• Ethylene glycol butyl ether acetate (CAS RN 112-07-2)
• Ethylene glycol hexyl ether (CAS RN 112-25-4)
• Propylene glycol butyl ether (CAS RN 5131-66-8)
• Propylene glycol methyl ether acetate (CAS RN 108-65-6)

Change to reporting requirements

The exemption was removed for reporting Part 1 to 3 substances from extraction and primary crushing in mines (except for pits and quarries).

Reporting of NPRI substances is required from portable facilities, which means portable polychlorinated biphenyls (PCB) destruction equipment, portable asphalt plants, and portable concrete batching plants.

The definition of "other use" was expanded to include "release" of an NPRI substance. "Other use" means, in respect of a substance listed in Schedule 1 of the Canada Gazette notice, any use, disposal or release of that substance which is not included in the definitions of "manufacture" or "process".

There is a mandatory reporting of latitude and longitude coordinates if the facility is portable or if it is reporting for the first time.

There are new requirements for facilities to provide updates about changes to contact information and ownership.

If facilities are already required by federal or provincial legislation or by a municipal by-law to measure or monitor releases, disposals and/or transfers for recycling of any listed substances, they are also required to report this data to the NPRI.

Change discussed but not implemented

The changes below were discussed but were not implemented:

• addition of following substances:
  • Perfluorooctanesulfonate (including its salts, and its precursors)
  • Hexachlorobutadiene
  • Benzidine (and benzidine dihydrochloride)
  • Refractory ceramic fibers
  • Tetrachlorobenzenes
  • Pentachlorobenzene
• deletion of 2-methoxyethanol
• modification to the requirements for the following substances:
  • Hexachlorobenzene
  • Chlorinated paraffins
  • Ethylene oxide
• mining exemption review
• harmonization of the NPRI with O. Reg. 127

Change discussed but not implemented

The changes below were discussed but were not implemented:

• addition of following substances (at an alternate threshold):
  • Thallium
  • Polychlorinated biphenyls
  • N-Nitrosodimethylamine (NDMA)
• modification to the requirements for the following substances:
  • Dioxins, furans and hexachlorobenzene
  • Particulate matter speciation
• mining exemption review
• harmonization of the NPRI with O. Reg. 127

Addition to the substance list

Carbonyl sulphide (CAS No. 463-58-1) and Phosphorous (total) were added to Part 1A

Sixty selected Volatile Organic Compound (VOC) substances with additional reporting criteria were added under Part 5, with a 1 tonne release to air reporting threshold:

• Acetylene (CAS RN 74-86-2)
• Adipic acid (CAS RN 124-04-9)
• Aniline (and its salts) (CAS RN 62-53-3)
• Benzene (CAS RN 71-43-2)
• 1,3-Butadiene (CAS RN 106-99-0)
• 2-Butoxyethanol (CAS RN 111-76-2)
• n-Butyl acetate (CAS RN 123-86-4)
• Chlorobenzene (CAS RN 108-90-7)
• p-Dichlorobenzene (CAS RN 106-46-7)
• 1,2-Dichloroethane (CAS RN 107-06-2)
• Dimethylether (CAS RN 115-10-6)
• Ethyl alcohol (CAS RN 64-17-5)
• Ethyl acetate (CAS RN 141-78-6)
• Ethylene (CAS RN 74-85-1)
• Formaldehyde (CAS RN 50-00-0)
• n-Hexane (CAS RN 110-54-3)
• Isopropyl alcohol (CAS RN 67-63-0)
• D-Limonene (CAS RN 5989-27-5)
• Methanol (CAS RN 67-56-1)
• Methyl ethyl ketone (CAS RN 78-93-3)
• 2-Methyl-3-hexanone (CAS RN 7379-12-6)
• Methyl isobutyl ketone (CAS RN 108-10-1)
• Myrcene (CAS RN 123-35-3)
• Beta-Phellandrene (CAS RN 555-10-2)
• Phenyl isocyanate (CAS RN 103-71-9)
• Alpha-Pinene (CAS RN 80-56-8)
• Beta-Pinene (CAS RN 127-91-3)
• Propane (CAS RN 74-98-6)
• Propylene (CAS RN 115-07-1)
• Styrene (CAS RN 100-42-5)
• 1,2,4-Trimethylbenzene (CAS RN 95-63-6)
• Trimethylfluorosilane (CAS RN 420-56-4)
• Toluene (CAS RN 108-88-3)
• Vinyl acetate (CAS RN 108-05-4)
• Anthraquinone (all isomers)
• Butane (all isomers)
• Butene (all isomers) (CAS RN 25167-67-3)
• Cycloheptane (all isomers)
• Cyclohexene (all isomers)
• Cyclooctane (all isomers)
• Decane (all isomers)
• Dihydronapthalene (all isomers)
• Dodecane (all isomers)
• Heptane (all isomers)
• Hexane (all isomers, excluding n-hexane)
• Hexene (all isomers) (CAS RN 25264-93-1)
• Methylindan (all isomers) (CAS RN 27133-93-3)
• Nonane (all isomers)
• Octane (all isomers)
• Pentane (all isomers)
• Pentene (all isomers)
• Terpene (all isomers) (CAS RN 68956-56-9)
• Trimethylbenzene (all isomers, excluding 1, 2, 4-trimethylbenzene) (CAS RN 25551-13-7)
• Xylene (all isomers) (CAS RN 1330-20-7)
• Creosote (CAS RN 8001-58-9)
• Heavy aromatic solvent naphtha (CAS RN 64742-94-5)
• Light aromatic solvent naphtha (CAS RN 64742-95-6)
• Mineral spirits (CAS RN 64475-85-0)
• Naphtha (CAS RN 8030-30-6)
• Stoddard solvent (CAS RN 8052-41-3)

The following substances were added to the newly created “Nonylphenol and its ethoxylates” substance group:

• Ethoxynonyl benzene (CAS RN 28679-13-2)
• Nonylphenol (CAS RN 104-40-5)
• Nonylphenol hepta (oxyethylene) ethanol (CAS RN 27177-05-5)
• Nonylphenol, industrial (CAS RN 84852-15-3)
• Nonylphenol, nona (oxyethylene) ethanol (CAS RN 27177-08-8)
• n-Nonylphenol (CAS RN 25154-52-3)
• Nonylphenol polyethylene glycol ether (CAS RN 9016-45-9)
• p-Nonylphenol polyethylene glycol ether (CAS RN 26027-38-3)
• Nonylphenoxy ethanol (CAS RN 27986-36-3)
• 2-(p-Nonylphenoxy)ethanol (CAS RN 104-35-8)
• 2-(2-(p-Nonylphenoxy)ethoxy)ethanol (CAS RN 20427-84-3)
• 2-(2-(2-(2-(p-Nonylphenoxy)ethoxy)ethoxy)ethoxy)ethanol (CAS RN 7311-27-5)
• Oxirane, methyl-, polymer with oxirane, mono(nonylphenol)ether (CAS RN 37251-69-7)
• Phenol, dinonyl (CAS RN 1323-65-5)
• Phenol, nonyl-, phosphite (CAS RN 26523-78-4)
• Phenol, nonyl-, barium salt (CAS RN 28987-17-9)
• Phenol, nonyl derivatives (CAS RN 68081-86-7)
• Barium, carbonate nonylphenol complexes (CAS RN 68515-89-9)
• Phenol, nonyl derives., sulphides (CAS RN 68515-93-5)
• Ethanol, 2-[2-(nonylphenoxy)ethoxy]- (CAS RN 27176-93-8)
• Nonylphenol ethoxylate (CAS RN 37340-60-6)
• Poly(oxy-1,2-ethanediyl), alpha-(nonylphenyl)-omega-hydroxy-, phosphate (CAS RN 51811-79-1)
• Poly(oxy-1,2-ethanediyl), alpha-(2-nonylphenyl)-omega-hydroxy- (CAS RN 51938-25-1)
• Nonylphenol ethoxylate (CAS RN 68412-53-3)
• Ammonium salt of sulphated nonylphenol ethoxylate (CAS RN 9051-57-4)
• Poly(oxy-1,2-ethanediyl), alpha(isononylphenyl) omega-hydroxy (CAS RN 37205-87-1)
• Poly(oxy-1,2-ethanediyl), alpha(nonylphenyl) omega-hydroxy, branched (CAS RN 68412-54-4)
• Poly(oxy-1,2-ethanediyl), alpha(4-nonylphenyl) omega-hydroxy, branched (CAS RN 127087-87-01)

The following substances were added to the newly created “Octylphenol and its ethoxylates” substance group:

• 4-tert-octylphenol (CAS RN 140-66-9)
• Phenol, 4-octyl (CAS RN 1806-26-4)
• Phenol, octyl (CAS RN 27193-28-8)
• Poly(oxy-1,2-ethanediyl), alpha-(octylphenyl)-omega-hydroxy-, branched (CAS RN 68987-90-6)
• Polyethylene glycol octylphenol ether (CAS RN 9002-93-1)
• Ethoxylated octylphenol (CAS RN 9036-19-5)

Deletion from the substance list

The following were replaced by the newly created “Nonylphenol and its ethoxylates” substance group:

• Ethoxynonyl benzene (CAS RN 28679-13-12)
• Nonylphenol (CAS RN 104-40-5)
• Nonylphenol hepta (oxyethylene) ethanol (CAS RN 27177-05-5)
• Nonylphenol, industrial (CAS RN 84852-15-3)
• Nonylphenol, nona (oxyethylene) ethanol (CAS RN 27177-08-8)
• n-Nonylphenol (CAS RN 25154-52-3)
• Nonylphenol polyethylene glycol ether (CAS RN 9016-45-9)
• p-Nonylphenol polyethylene glycol ether (CAS RN 26027-38-3)
• Nonylphenoxy ethanol (CAS RN 27986-36-3)
• 2-(p-Nonylphenoxy)ethanol (CAS RN 104-35-8)
• 2-(2-(p-Nonylphenoxy)ethoxy)ethanol (CAS RN 20427-84-3)
• 2-(2-(2-(2-(p-Nonylphenoxy)ethoxy)ethoxy)ethoxy)ethanol (CAS RN 7311-27-5)
• Oxirane, methyl-, polymer with oxirane, mono(nonylphenol)ether (CAS RN 37251-69-7)

The following was replaced by the newly created “Octylphenol and its ethoxylates” substance group:

• 4-tert-octylphenol (CAS RN 140-66-9)

Change to reporting requirements

The exemption for emissions from activities related to the operation of oil and gas wells was removed. The exemption for oil and gas exploration and well drilling was not affected.

Mandatory reporting by facilities of their Business Number was added. Business Numbers (nine-digit registration number) can be found on all forms that are issued to a business by the Canada Customs and Revenue Agency.

The definition of a facility was expanded to include "offshore installations", as well as pipeline installations and contiguous facilities.

Change discussed but not implemented

The changes below were discussed but were not implemented:

• addition of Greenhouse gases and Acetone
• addition of Beryllium (at an alternate threshold)
• modification to the requirements for Nickel (at an alternate threshold)

Addition to the substance list

Seven Criteria Air Contaminants (CACs) were added to Part 4 of the substance list:

• Carbon monoxide (CAS RN 630-08-0)
• Oxides of nitrogen (CAS RN 11104-93-1)
• Sulphur dioxide (CAS RN 7446-09-5)
• Total particulate matter (TPM)
• Particulate Matter less than or equal to 2.5 Microns (PM2.5)
• Particulate Matter less than or equal to 10 Microns (PM10)
• Volatile Organic Compounds (VOCs)

Modification to a listed substance

The listing for Chromium (and its compounds) was updated with separate entries for:

• Chromium (and its compounds, except for hexavalent chromium)
• Hexavalent chromium compounds (reporting threshold at 50 kg and 0.1% concentration)

Adjustment to a reporting threshold

The reporting thresholds for the following substances were modified from the original 10-tonne and 1% concentration thresholds. The following substances are now listed on Part 1B:

• Cadmium (and its compounds) (5 kg with 0.1% concentration criterion)
• Arsenic (and its compounds) (50 kg with 0.1% concentration criterion)
• Lead (and its compounds, except tetraethyl lead) (50 kg with 0.1% concentration criterion)
• Tetraethyl lead (50 kg with 0.1% concentration criterion)

The 20,000-hour employee threshold is no longer applicable to the following:

• non-hazardous solid waste incineration and biomedical or hospital waste incineration of at least 26 tonnes (reduced from 100 tonnes)
• terminal operations
• discharge of treated or untreated wastewater from a wastewater collection system with an average discharge of 10,000 m³ or more per day into surface waters

Change discussed but not implemented

Addition of the following substances was discussed but was not implemented:

• Carbonyl sulphide
• Hexachlorobutadiene
• Hexabromodiphenyl
• Octachlorostyrene
• Tetrabromobisphenol A
• Inorganic chloramines
• Phosphate

Modification to the requirements for Nickel (at an alternate threshold) was discussed but was not implemented.

Change to reporting requirements

The following were exempted:

• maintenance and repair of transportation vehicles, such as automobiles, trucks, locomotives, ships or aircraft, except painting and stripping of vehicles or their components, or the rebuilding or remanufacturing of vehicle components
• distribution, storage or retail sale of fuels, except as part of the terminal operations

More detailed reporting on pollution prevention activities was added (e.g. the specific type of equipment or process modifications carried out).

Facilities that reported in the previous year must advise Environment Canada if they do not meet the NPRI reporting criteria for the current year.

The following definitions were changed:

• the definition of "by-product" was revised to mean a substance that is incidentally manufactured, processed or otherwise used at the facility at any concentration, and released on-site to surface waters or transferred off-site for disposal
• the definition of "facility" was revised to refer to a contiguous facility and pipeline installation
• the definition of "other use" was revised to mean any use or disposal of a substance, listed in Schedule 1 of the NPRI Canada Gazette notice, relevant to the purpose of the facility that is not included under the definitions of “manufacture” or “process”

Addition to the substance list

N,N-Dimethylformamide (CAS RN 68-12-2) was added to Part 1A.

Deletion from the substance list

Phosphoric acid (CAS No. 7664-38-2) was deleted from the substance list.

Modification to a listed substance

The following substances were modified:

• amalgamation of the individual isomers of cresol (m-, o- and p-cresol) to Cresol (all isomers and their salts)
• modification of Vanadium (fume or dust) (CAS RN 7440-62-2) to Vanadium (except when in an alloy) and its compounds (CAS RN 7440-62-2)

Change to reporting requirements

The following groupings were used to summarize information collected through the NPRI beginning with the 2001 reporting year:

• On-site pollutant releases:
• air
• water
• land (includes spills, leaks and other)
• Disposal:
• on-site disposal: landfill, land treatment and underground injection
• off-site disposal: landfill, land treatment, underground injection and storage
• Off-site transfers for treatment prior to final disposal:
• physical treatment
• chemical treatment
• biological treatment
• incineration or thermal treatment where energy is not recovered
• treatment at a municipal sewage treatment plant (MSTP)
• Off-site transfers for recycling and energy recovery:
• recycling
• energy recovery

The requirement for persons reporting to the NPRI to retain copies of all information upon which their report was based, at the facility or parent company (in Canada), for three years was added.

Change discussed but not implemented

The changes below were discussed but were not implemented:

• addition of Refractory ceramic fibres
• addition of the following substances at an alternate threshold or threshold reduction:
• Polychlorinated biphenyls
• Hexabromobiphenyl
• Octachlorostyrene
• Pentachlorobenzene
• Tetrabromobisphenol A
• pesticides: lindane, dicofol, methoxychlor, pendimathalin, trifluralin
• metals that meet the definition of toxic under the Canadian Environmental Protection Act, such as hehxavalent chromium, specific arsenic compounds, specific cadmium compounds, lead and its compounds
• other substances that meet the definition of toxic under the Canadian Environmental Protection Act: benzidine, 3,3-dichlorobenzidine and its salts, HCFC-225da, HCFC-225ca, and HCFC-225cb (and 13 other ozone depleting substances added in 1999)
• Acrolein
• Beryllium
• Nonylphenol and nonylphenol ethoxylates
• Short chain chlorinated paraffins
• 2,4,6-trichlorophenol
• 2,3,4,6-tetrachlorophenol
• Trichlorobenzenes

Addition to the substance list

The following substances were added to Part 1A of the substance list:

• Acrolein (CAS RN 107-02-8)
• 4-tert-octylphenol (CAS RN 140-66-9)
• Polymeric diphenylmethane diisocyanate (PMDI) (CAS RN 9016-87-9)
• Oxirane, methyl-, polymer with oxirane, mono(nonylphenol)ether (CAS RN 37251-69-7)

The following substances were added to Part 3 of the substance list:

• Polychlorinated dibenzo-p-dioxins (dioxins) and Polychlorinated dibenzofurans (furans)
• Hexachlorobenzene (HCB) (CAS RN 118-74-1)

Seventeen Polycyclic Aromatic Hydrocarbons (PAHs) were added to Part 2 of the substance list:

• Benzo(a)anthracene (CAS RN 56-55-3)
• Benzo(a)phenanthrene (CAS RN 218-01-9)
• Benzo(a)pyrene (CAS RN 50-32-8)
• Benzo(b)fluoranthene (CAS RN 205-99-2)
• Benzo(e)pyrene (CAS RN 192-97-2)
• Benzo(g,h,i)perylene (CAS RN 191-24-2)
• Benzo(j)fluoranthene (CAS RN 205-82-3)
• Benzo(k)fluoranthene (CAS RN 207-08-9)
• Dibenz(a,j)acridine (CAS RN 224-42-0)
• Dibenzo(a,h)anthracene (CAS RN 53-70-3)
• Dibenzo(a,i)pyrene (CAS RN 189-55-9)
• 7H-Dibenzo(c,g)carbazole (CAS RN 194-59-2)
• Fluoranthene (CAS RN 206-44-0)
• Indeno(1,2,3-c,d)pyrene (CAS RN 193-39-5)
• Perylene (CAS RN 198-55-0)
• Phenanthrene (CAS RN 85-01-8)
• Pyrene (CAS RN 129-00-0)

Adjustment to a reporting threshold

The reporting thresholds were modified for many substances from the original 10-tonne and 1% by weight concentration thresholds.

Significant changes were made regarding the reporting thresholds of substances that pose serious risks to human health or the environment in relatively low quantities. Alternate thresholds were applied to:

• Mercury (and its compounds) - lowered to a 5 kg threshold, at any concentration
• Polycyclic Aromatic Hydrocarbons (PAHs) - seventeen substances were added to Part 3 of the substance list and were required to be reported if any substance was released or transferred from a wood preservation process using creosote, or was incidentally manufactured and the quantity of substances released or transferred exceeded 50 kg
• Dioxins and furans and hexachlorobenzene – required to be reported for a contiguous or portable facility or an offshore installation where any of the following activities take place:
• base metals smelting (copper, lead, nickel or zinc only)
• smelting of secondary aluminum
• smelting of secondary lead
• manufacturing of iron using a sintering process
• operation of electric arc furnaces in steel foundries
• operation of electric arc furnaces in steel manufacturing
• production of magnesium
• manufacturing of Portland cement
• production of chlorinated organic solvents or chlorinated monomers
• combustion of fossil fuel in a boiler unit, with a nameplate capacity of ≥ 25 megawatts of electricity, for the purpose of producing steam for the production of electricity
• combustion of hog fuel originating from logs that were transported or stored in salt water in the pulp and paper sector
• combustion of fuel in Kraft liquor boilers used in the pulp and paper sector
• titanium dioxide pigment production using the chloride process
• non-hazardous solid waste incineration of ≥ 26 tonnes of waste, including conical burners and beehive burners
• biomedical or hospital waste incineration of ≥ 26 tonnes of waste
• hazardous waste incineration
• sewage sludge incineration
• wood preservation using pentachlorophenol

Change to reporting requirements

The 20,000 hour employee threshold was removed for facilities used for wood preservation and certain types of incineration.

Facilities in 10 different categories were made exempt from reporting, including those involved exclusively in research or testing, mining (but not processing of mined materials), and drilling and operating oil and gas wells.

Addition to the substance list

73 substances were added to the substance list:

• 1,1,1,2-Tetrachloroethane (CAS RN 630-20-6)
• 1,1-Methylenebis(4-isocyanatocyclohexane) (CAS RN 5124-30-1)
• 1-Bromo-2-chloroethane (CAS RN 107-04-0)
• 2-(p-Nonylphenoxy)ethanol (CAS RN 104-35-8)
• 2,2,4-Trimethylhexamethylene diisocyanate (CAS RN 16938-22-0)
• 2,4,4-Trimethylhexamethylene diisocyanate (CAS RN 15646-96-5)
• 2,6-Di-t-butyl-4-methylphenol (CAS RN 128-37-0)
• 2-[2-(p-Nonylphenoxy)ethoxy]ethanol (CAS RN 20427-84-3)
• 2-[2-[2-[2-(p-Nonylphenoxy)ethoxy)ethoxy (CAS RN 7311-27-5)
• 2-Mercaptobenzothiazole (CAS RN 149-30-4)
• 2-Methylpyridine (CAS RN 109-06-8)
• 3,3'-Dichlorobenzidine dihydrochloride (CAS RN 612-83-9)
• 3-Chloro-2-methyl-1-propene (CAS RN 563-47-3)
• 3-Chloropropionitrile (CAS RN 542-76-7)
• Acetophenone (CAS RN 98-86-2)
• Alkanes, C10-13, chloro (CAS RN 85535-84-8)
• Alkanes, C6-18, chloro (CAS RN 68920-70-7)
• Boron trifluoride (CAS RN 7637-07-02)
• Bromine (CAS RN 7726-95-6)
• Bromochlorodifluoromethane (Halon 1211) (CAS RN 353-59-3)
• Bromotrifluoromethane (Halon 1301) (CAS RN 75-63-8)
• Butyl cellosolve (CAS RN 111-76-2)
• C.I. Direct Blue 218 (CAS RN 28407-37-6)
• Calcium fluoride (CAS RN 7789-75-5)
• Chlorendic acid (CAS RN 115-28-6)
• Chloropentafluoroethane (CFC-115) (CAS RN 76-15-3)
• Chlorotrifluoromethane (CAS RN 75-72-9)
• Crotonaldehyde (CAS RN 4170-30-3)
• Cyclohexanol (CAS RN 108-93-0)
• Dichlorodifluoromethane (CFC-12) (CAS RN 75-71-8)
• Dichlorofluoroethane (HCFC-141) (CAS RN 1717-00-6)
• Dichlorotetrafluoroethane (CFC-114) (CAS RN 76-14-2)
• Dicyclopentadiene (CAS RN 77-73-6)
• Dimethylamine (CAS RN 124-40-3)
• Dimethylphenol (mixed isomers) (CAS RN 1300-71-6)
• Diphenylamine (CAS RN 122-39-4)
• Ethoxynonyl benzene (CAS RN 28679-13-2)
• Fluorine (CAS RN 7782-41-4)
• Formic acid (CAS RN 64-18-6)
• HCFC-122 (and all isomers) (CAS RN 41834-16-6)
• HCFC-123 (and all isomers) (CAS RN 34077-87-7)
• HCFC-124 (and all isomers) (CAS RN 63938-10-3)
• Hexachlorophene (CAS RN 70-30-4)
• Hydrochlorodifluoromethane (HCFC-22) (CAS RN 75-45-6)
• Hydrogen sulphide (CAS RN 7783-06-4)
• Hydrotrichlorodifluoroethane (HCFC-142B) (CAS RN 75-68-3)
• Iron pentacarbonyl (CAS RN 13463-40-6)
• Isophorone diisocyanate (CAS RN 4098-71-9)
• Isoprene (CAS RN 78-79-5)
• Lithium carbonate (CAS RN 554-13-2)
• n-Hexane (CAS RN 110-54-3)
• n-Methyl pyrrolidone (CAS RN 872-50-4)
• N-Methylolacrylamide (CAS RN 924-42-5)
• n-Nonylphenol (mixed isomers) (CAS RN 25154-52-3)
• Nonylphenol (CAS RN 104-40-5)
• Nonylphenol hepta(oxyethylene) ethanol (CAS RN 27177-05-5)
• Nonylphenol nona(oxyethylene) ethanol (CAS RN 27177-08-8)
• Nonylphenol polyethylene glycol ether (CAS RN 9016-45-9)
• Nonylphenol, industrial (CAS RN 84852-15-3)
• Nonylphenoxy ethanol (CAS RN 27986-36-3)
• p-Nitroaniline (CAS RN 100-01-6)
• p-Nonylphenol polyethylene glycol ether (CAS RN 26027-38-3)
• Paraldehyde (CAS RN 123-63-7)
• Pentachloroethane (CAS RN 76-01-7)
• Potassium bromate (CAS RN 7758-01-2)
• Propargyl alcohol (CAS RN 107-19-7)
• Sodium fluoride (CAS RN 7681-49-4)
• Sodium nitrite (CAS RN 7632-00-0)
• Sulphur hexafluoride (CAS RN 2551-62-4)
• Tetracycline hydrochloride (CAS RN 64-75-5)
• Tetraethyl lead (CAS RN 78-00-2)
• Trichlorofluoromethane (CFC-11) (CAS RN 75-69-4)
• Triethylamine (CAS RN 121-44-8)

Modification to a listed substance

There was the amalgamation of the individual isomers of xylene (m-, o- and p-xylene) to Xylene (mixed isomers).

Deletion from the substance list

Acetone (CAS RN 67-64-1) was deleted from the substance list.

Change discussed but not implemented

The changes below were discussed but were not implemented:

• addition of the following substances:
• Non-pesticidal organotin compounds
• Aluminum sulphate
• Aluminum nitrate
• Aluminum chloride
• Ethanol
• Polymeric dephenyl methane diisocyanate (PMDI)
• Wood preservatives
• Polycyclic aromatic hydrocarbons
• Nutrients (nitrites, urea, and phosphates)
• addition of certain ozone depleting substances (at an alternate threshold)
• Deletion of the following substances:
• Sulphuric acid
• Hydrochloric acid
• Acetone
• Phosphoric acid

Change to reporting requirements

Reporting of the Dun and Bradstreet Number was added to allow easier identification of corporate structures and the relation of facilities to their parent companies.

Change to reporting requirements

Reporting of the quantities of substances transferred off-site for recycling, the nature of the recycling activity, and the name and address of the receiving facility was made mandatory.

Facilities must indicate estimation methods for disposals or recycling.

The NAICS (North American Industry Classification System) was adopted as the standard for identifying industrial sectors to enable better comparisons of NPRI data with United States and Mexican data. There was also the continued collection from reporting facilities of Canadian and U.S. Standard Industrial Classification (SIC) codes.

Change to reporting requirements

We made reporting of qualitative pollution prevention (P2) activities mandatory.

We also made reporting of the reasons for transferring substances off-site, off-site disposal activities and, optionally, off-site recycling activities mandatory.

We asked reporters to voluntarily provide a production ratio or activity index to help explain the trends in historical environmental releases and waste transfers.

Modification to a listed substance

Modification of "Nitrate ion in solution at a pH of 6.5 or greater" to "Nitrate ion in solution at a pH of 6.0 or greater."

Addition to the substance list

Nitrate ion in solution with a pH of 6.5 or more was added to Part 1A of the substance list.

Modification to a listed substance

The qualifier "and its salts" was added to the listings for 20 substances in order to collect more comprehensive information:

• Acrylic acid (and its salts) (CAS RN 79-10-7)
• Aniline (and its salts) (CAS RN 62-53-3)
• Chloroacetic acid (and its salts) (CAS RN 79-11-8)
• 2,4-Diaminotoluene (and its salts) (CAS RN 95-80-7)
• 2,4-Dichlorophenol (and its salts) (CAS RN 120-83-2)
• Diethanolamine (and its salts) (CAS RN 111-42-2)
• N,N-Dimethylaniline (and its salts) (CAS RN 121-69-7)
• 4,6-Dinitro-o-cresol (and its salts) (CAS RN 534-52-1)
• Hydrazine (and its salts) (CAS RN 302-01-2)
• Hydroquinone (and its salts) (CAS RN 123-31-9)
• Michler's ketone (and its salts) (CAS RN 90-94-8)
• Nitrotriacetic acid (and its salts) (CAS RN 139-13-9)
• p-Nitrophenol (and its salts) (CAS RN 100-02-7)
• Peracetic acid (and its salts) (CAS RN 79-21-0)
• Phenol (and its salts) (CAS RN 108-95-2)
• p-Phenylenediamine (and its salts) (CAS RN 106-50-3)
• o-Phenylphenol (and its salts) (CAS RN 90-43-7)
• Pyridine (and its salts) (CAS RN 110-86-1)
• Quinoline (and its salts) (CAS RN 91-22-5)

The entry for asbestos was clarified to include only the friable form.

The individual entries for ammonia, ammonium nitrate and ammonium sulphate in solution were replaced with a single entry for ammonia (total).

The qualifiers for zinc was changed from "fume or dust" to "and its compounds” (CAS RN 7440-66-6).

Change to reporting requirements

The by-product definition was added. The weight of the by-product must be used in the calculation of the 10-tonne reporting threshold, regardless of the concentration.

There is a requirement to report all discharges to sanitary sewers as a transfer to a municipal sewage treatment plant, regardless of the level of treatment. (Previously discharges with only primary treatment were considered releases to water bodies).

The rounding of releases of less than 0.5 tonnes to 0 (zero) was no longer permitted; a release of 0 (zero) was allowed only where there are absolutely no releases.

Addition to the substance list

i-Butyl alcohol (CAS No. 78-83-1) was added to Part 1A.

Deletion from the substance list

Chloromethyl methyl ether (CAS No. 107-30-2) was deleted from Part 1.

Change to reporting requirements

A permanent NPRI identification number (ID) was assigned to each facility that reported in 1993.

Facilities must report one facility public contact and a company coordinator.

The reporting of one Canadian and one American Standard Classification Code (SIC) per facility was added.

Biological and chemical treatment were added to "disposal method".

Addition to the substance list

The NPRI Multi-Stakeholder Advisory Committee (composed of representatives from industry, environmental groups, labour and the federal and provincial governments) proposed the design and reporting procedures for the NPRI, as outlined in the Final Report of the NPRI Multi-Stakeholder Advisory Committee. The original substance list consisted of 173 substances.