Chemical substances in Batch 5 of the Challenge

On this page

• Summary of Batch 5 substances and publications
• Timelines
• Substance Groupings Initiative
• Risk management action milestones
• Adding substances to Schedule 1
• Significant New Activity (SNAc) provisions
• Applying SNAc provisions
• Varying the requirements under the SNAc provisions
• Rescinding requirements under the SNAc provisions
• Final screening assessments and risk management approaches
• Draft screening assessments and risk management scopes
• Information gathering
  • 2008 Mandatory survey – section 71 notice

Summary of Batch 5 substances and publications

Timelines

Substance Groupings Initiative

The following substances in this batch have been included in the Aromatic Azo and Benzidine-based Substance Grouping under Substance Groupings Initiative as part of the second phase of the Chemicals Management Plan. As outlined in the notice of intent for the Aromatic Azo and Benzidine-based Substance Grouping, it was recognized that assessments and conclusions pertaining to some of the substances in the grouping may be subsequently updated as part of the subgroup assessment. The latest updates on these substances are found on the respective Substance Groupings Initiative pages.

Risk management action milestones

The risk management action milestones table outlines the risk management actions that were proposed for each chemical substance in this batch of the Challenge that met the criteria of section 64 of CEPA. These proposed risk management actions were published in the risk management approaches for these substances. For the complete wording of these proposed actions, please refer to the risk management approaches.

Adding substances to Schedule 1

Two substances in this batch have been added to Schedule 1 to CEPA.

• Final order adding acrylamide (CAS RN 79-06-1) and TCEP (CAS RN 115-96-8): Canada Gazette, Part II: Vol. 145, No. 5 - March 2, 2011

Significant New Activity (SNAc) provisions

View the SNAc publications under CEPA. Orders are subject to potential amendments under the SNAc Review.

Applying SNAc provisions

In January 2017, an order amending the DSL to apply the SNAc provisions of CEPA to TCEP (CAS RN 115-96-8) was published:

• Canada Gazette, Part II: Vol. 147, No. 3 - January 30, 2017

In November 2010, an order amending the DSL to apply the SNAc provisions of CEPA to chloroacetamide (CAS RN 79-07-2) was published:

• Canada Gazette, Part II: Vol. 144, No. 23 - November 10, 2010

In September 2009, an order amending the DSL to apply the SNAc provisions of CEPA to Disperse Orange 5 (CAS RN 6232-56-0) was published:

• Canada Gazette, Part II: Vol. 143, No. 19 - September 16, 2009

For additional guidance on submitting information required as part of SNAc requirements, please see the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).

Varying the requirements under the SNAc provisions

In March 2026, an order amending the DSL to vary the requirements under the SNAc provisions of CEPA for 2-chloroacetamide (CAS RN 79-07-2) was published in the Canada Gazette, Part II: Vol. 160, No. 6 – March 25, 2026. The amendments are an outcome of the SNAc Review.

In January 2017, a notice of intent to amend the DSL to vary the requirements under the SNAc provisions of CEPA for TCEP (CAS RN 115-96-8) was published in the Canada Gazette, Part I: Vol. 151, No. 2 - January 14, 2017. The proposed amendments are an outcome of the SNAc Review. The DSL amendments do not come into force until the final order is published in the Canada Gazette, Part II. Any current requirements under the SNAc provisions remain in effect until then.

Rescinding requirements under the SNAc provisions

In July 2017, an order rescinding the requirements under the SNAc provisions of CEPA for Disperse Orange 5 (CAS RN 6232-56-0) was published in the Canada Gazette, Part II: Vol. 151, No. 14 - July 12, 2017. This substance was subject to the SNAc provisions as a result of the 2009 assessment of substances in this batch. Since then, it was included in the Certain Azo Disperse Dyes subgroup, assessed in March 2017, and concluded to not be of concern to the environment.

Final screening assessments and risk management approaches

In August 2009, the final screening assessments for this batch were released and the related notices were published in the Canada Gazette, Part I: Vol. 143, No. 34 - August 22, 2009.

The final screening assessments concluded that two substances in this batch meet 1 or more criteria in section 64 of CEPA. The Government added these substances to Schedule 1 to CEPA. Proposed risk management approaches were also released on this date for the substances in this batch which met the criteria in section 64 of CEPA.

Draft screening assessments and risk management scopes

New information was received from industry or interested stakeholders for each of the 19 substances in this batch. In February 2009, the draft screening assessments were released and the related notices were published in the Canada Gazette, Part I: Vol. 143, No. 8 - February 21, 2009. Risk management scopes were also released in conjunction with these publications.

Information gathering

2008 Mandatory survey - section 71 notice

In February 2008, a notice was issued in Canada Gazette, Part I: Vol. 142, No. 7 - February 16, 2008 under section 71 of CEPA. This notice applied to all 19 substances in this batch.