British Columbia adopts selected 2021 to 2024 recommendations
British Columbia adopted selected exposure-limit and substance-definition changes effective June 20, 2025 within WorkSafeBC jurisdiction. The decision covers antimony trioxide, solvents, mica and other listed substances; benzene was excluded from this adopted batch.
This entry contains selected numerical examples. It is not a complete exposure-limit table, and it establishes no new benzene limit.
- Legal status
- in force
- Source check
- Sep 17, 2026
- Topic
- Solvents and chemical exposure limits
- Technical review
- Jiaxi · 2026-09-23
What changed
Previous requirement
Listed substances were excluded pending review; epichlorohydrin already matched its recommended limit.
New requirement or current position
The decision adopts selected recommendations for antimony trioxide, solvents, mica and other listed substances.
Who it affects
- Chemical manufacture
- Coatings
- Solvent use
Dates and milestones
Commencement and compliance dates can differ. Read the conditions beside each date, including any stay or local adoption requirement.
- Announcement or publication
- Not established or not applicable
- Recorded effective date
- Jun 20, 2025
Selected exposure values
These values need the scope, limit type and averaging period shown below. A proposed or advisory value is not a binding limit.
Antimony trioxide, inhalable
0.02 mg/m3| Averaging period | 8 hours |
|---|---|
| Limit type | TWA |
| Scope | WorkSafeBC workplaces |
Cumene
5 ppm| Averaging period | 8 hours |
|---|---|
| Limit type | TWA |
| Scope | WorkSafeBC workplaces |
What this could mean for your IH program
Map renamed substances and revised limits without treating every recommended change as adopted.
Confirm applicability with a qualified practitioner before changing your program.
Questions and qualifications
- Selected numerical examples only; do not treat this record as a complete OEL table.
- Benzene was not adopted in this batch.
Source evidence
- Decision on selected 2021, 2022, 2023 and 2024 ACGIH TLVs
WorkSafeBC · Decision paragraphs and exposure-limit table
Selected chemical limits apply from June 20, 2025; epichlorohydrin already matched the recommended value.
- BOD Decision 2025/04/25-03
WorkSafeBC · Decision summary and meeting date
Confirms Board approval April 25, 2025.
- Proposed B.C. Exposure Limits
WorkSafeBC · Results
Other proposals were adopted; benzene remains under study and requires consultation before Board submission.
Managing your IH program
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