Part IIFinal RegulationVolume 159, Number 5Published: March 11, 2026

New Fentanyl Precursors Added

Regulations Amending the Precursor Control Regulations (Additional Fentanyl Precursors): SOR/2026-39

Four chemicals — phenethyl bromide, propionic anhydride, phenethyl iodide, and phenethyl chloride — were added to the Precursor Control Regulations as fentanyl precursors. The amendment was registered Feb 26, 2026, published Mar 11, 2026, and comes into force on 2026-04-12, introducing regulatory controls that will affect suppliers, researchers, and others who handle these substances.

Published
March 11, 2026
Department
Unavailable
Section
Regulations Amending the Precursor Control Regulations (Additional Fentanyl Precursors)
Comment deadline
Unavailable
Effective date
April 12, 2026
Publication part
Part II

Summary

Summary#

The government has added four chemicals to the schedule of the Regulations Amending the Precursor Control Regulations (Additional Fentanyl Precursors): SOR/2026-39. The change takes effect on April 12, 2026 and is meant to control substances linked to fentanyl production.

What it does#

  • Adds these four items to the schedule after item 33:
    • 34 — Phenethyl bromide ((2-bromoethyl)benzene), Column 2: 0
    • 35 — Propionic anhydride (propanoic anhydride), Column 2: 0
    • 36 — Phenethyl iodide ((2-iodoethyl)benzene), Column 2: 0
    • 37 — Phenethyl chloride ((2-chloroethyl)benzene), Column 2: 0
  • The amendment was registered as SOR/2026-39 on February 26, 2026 and published in the Canada Gazette on March 11, 2026.
  • The measure was made by the Governor General in Council on the recommendation of the Minister of Health under the Controlled Drugs and Substances Act.
  • The official Regulatory Impact Analysis Statement (RIAS) is published alongside a related instrument, SOR/2026-38, and gives more context about impacts (the Gazette notice points readers there).

Who's affected#

  • Businesses and people who make, import, sell, distribute, possess, or use the four listed chemicals — for example, some chemical suppliers, laboratories, and manufacturers.
  • Law enforcement and public health agencies that track and act on illegal fentanyl production.
  • It may also affect researchers and companies that use these chemicals for legitimate industrial or scientific purposes.
  • The Gazette text itself does not spell out exactly which routine activities will change; the RIAS linked to the related notice likely has more detail.

Why it matters#

  • The four substances are being formally identified as additional precursors connected to fentanyl production. That typically means tighter controls on their availability and movement.
  • Tighter controls aim to make it harder to get chemicals used to make illicit fentanyl, which could help reduce illegal production and harms from synthetic opioids.
  • At the same time, people and businesses that use these chemicals for lawful reasons may face new paperwork, restrictions, or compliance costs — details are in the RIAS referenced by the Gazette.

Key topics

Controlled Drugs and Substances ActCDSAPrecursor Control RegulationsPhenethyl bromide ((2-bromoethyl)benzene)Propionic anhydride (propanoic anhydride)Phenethyl iodide ((2-iodoethyl)benzene)Phenethyl chloride ((2-chloroethyl)benzene)Health CanadaGovernor General in Councilfentanylprecursorschemical substancescontrolled substancespublic health

Source: Canada Gazette

Official source