Chemical substances in Batch 6 of the Challenge

On this page

• Summary of Batch 6 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 SNAc provisions
  • Rescinding SNAc provisions
• Significant New Activity Notification (SNAN) risk assessment summaries
• 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 6 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 the 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 approach for this substance. For the complete wording of these proposed actions, please refer to the risk management approach.

Adding substances to Schedule 1

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

• Final order adding Solvent Red 23 (CAS RN 85-86-9): Canada Gazette, Part II: Vol. 150, No. 25 - December 14, 2016
• Final order adding benzyl chloride (CAS RN 100-44-7): Canada Gazette, Part II: Vol. 145, No. 26 - December 21, 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 May 2013, an order amending the DSL to apply the SNAc provisions of CEPA to benzyl chloride (CAS RN 100-44-7) was published:

• Canada Gazette, Part II: Vol. 147, No. 10 - May 8, 2013

In November 2010, two orders amending the DSL to apply the SNAc provisions of CEPA to 11 substances were published:

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

For additional guidance on submitting information required as part of SNAc notifications, 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 3-chloropropene (CAS RN 107-05-1) and DMEP (CAS RN 117-82-8) 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 benzyl chloride (CAS RN 100-44-7) was published in the Canada Gazette, Part I: Vol. 151, No. 2 - January 14, 2017. The proposed amendment is an outcome of the SNAc Review. The DSL amendment 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 SNAc provisions

In October 2016, an order rescinding the requirements under the SNAc provisions for Solvent Red 3 (CAS RN 6535-42-8) was published in the Canada Gazette, Part II: Vol. 150, No. 21 - October 19, 2016. Solvent Red 3 was subject to the SNAc provisions as a result of the 2010 assessment of Batch 6 of the Challenge. Since then, it has since been included in the Certain Azo Solvent Dyes Subgroup, assessed in 2016, and concluded to not pose a risk to the environment or human health.

Significant New Activity Notification (SNAN) risk assessment summaries

One substance in this batch has been assessed for new activities notified through a SNAN. One SNAN risk assessment summary has been published.

• SNAN risk assessment summary for benzyl chloride (CAS RN 100-44-7)

Final screening assessments and risk management approaches

In September 2011, the final screening assessments for the remaining four substances in this batch were released and the related notices were published in the Canada Gazette, Part I: Vol. 145, No. 37 - September 10, 2011.

In November 2009, the final screening assessments for 14 of the 18 substances in this batch were released and the related notices were published in the Canada Gazette, Part I: Vol. 143, No. 48 - November 29, 2009.

The final screening assessments concluded that two substances in this batch meet one or more criteria in section 64 of the CEPA. The Government added these substances to Schedule 1 to CEPA. Proposed risk management approaches were also released 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 18 substances in this batch. In May 2009, the draft screening assessments were released and the related notices were published in the Canada Gazette, Part I: Vol. 143, No. 22 - May 30, 2009. Risk management scopes were also released in conjunction with these publications.

In October 2010, a notice relating to the release of the draft screening assessments for the four remaining substances in Batch 6 (CAS RNs 85-86-9, 6358-57-2, 7147-42-4 and 19800-42-1) was published in the Canada Gazette, Part I: Vol. 144, No. 40 - October 2, 2010.

New content has been added regarding the human health aspects of the assessments and has led to the re-publication of the draft screening assessments on these substances in order to allow a public comment period on the updated content. Risk management scope documents were also released in conjunction with these publications.

Information gathering

2008 Mandatory survey - section 71 notice

In May 2008, a notice was issued in the Canada Gazette, Part I: Vol. 142, No. 22 - May 31, 2008 under section 71 of CEPA. This notice applied to all 18 substances in this batch.