Regulations / State
California asbestos regulations.
Who licenses asbestos work in California, who takes the notification, and how long before the job you have to file. Plus how the federal rules layer on top.
State licensing & accreditation
Asbestos abatement work in California is licensed/accredited through the Contractors State License Board (CSLB) for contractor licensing; Cal/OSHA (DOSH) Asbestos Contractor Registration Unit (ACRU) for employer registration under Bus. & Prof. Code §7058.5 (CSLB C-22 / asbestos certification); Labor Code §6501.5–6501.8 and 8 CCR §§341.6–341.14 (Cal/OSHA registration).
Credentials the state issues:
- CSLB C-22 Asbestos Abatement classification or asbestos certification (work ≥100 sq ft)
- Cal/OSHA (DOSH) asbestos contractor/employer registration via ACRU
Notification
Notifications go to the Local Air Quality Management/Pollution Control Districts under CARB oversight (NESHAP); Cal/OSHA district office for the worksite notice under Asbestos NESHAP, 40 CFR Part 61, Subpart M (via CARB/air districts); Cal/OSHA notice under 8 CCR §1529.
- Advance notice: 10 working days (air-district NESHAP notice); 24 hours (Cal/OSHA temporary-worksite notice).
- Notification details / form.
How the federal rules layer in
No matter the state, federal OSHA 29 CFR 1926.1101 (asbestos in construction), EPA NESHAP (40 CFR 61, Subpart M), and AHERA worker accreditation still apply. A state program layers its own licensing and notification on top of — not instead of — these. Where California has no state license, the federal accreditation and NESHAP notification requirements are the floor.
California-specific notes
- Contractor needs CSLB C-22 (or asbestos certification) for asbestos work ≥100 sq ft of surface area.
- Employers doing such work must also register with Cal/OSHA ACRU.
- NESHAP notification goes to the local air district at least 10 working days before work; copy to CARB.
- Cal/OSHA requires a temporary-worksite notice to the nearest DOSH district office 24 hours before work.
- CARB also regulates naturally-occurring asbestos via ATCMs (17 CCR §93105, §93106).
Official sources
- CSLB Asbestos Certification classification
- Cal/OSHA Asbestos Contractor Registration (ACRU)
- CARB Asbestos NESHAP Notification
Related
- All asbestos regulations by state
- OSHA 29 CFR 1926.1101 — Asbestos in Construction
- EPA NESHAP — 40 CFR 61, Subpart M
- Asbestos abatement software
- Compliance reporting in Nexus
Items we could not fully verify against a primary source: Air-district lead time varies by delegated district; 10 working days is the common figure.
Last reviewed against the published rules: 2026-05-28. This is a summary, not legal advice. Asbestos rules — and the agencies that run them — change; confirm the current requirements with the Local Air Quality Management/Pollution Control Districts under CARB oversight (NESHAP); Cal/OSHA district office for the worksite notice and read the actual rule before making a compliance decision.
California asbestos: common questions
Do I need a license to do asbestos abatement in California?
Yes — California regulates who can perform asbestos abatement. Contractors State License Board (CSLB) for contractor licensing; Cal/OSHA (DOSH) Asbestos Contractor Registration Unit (ACRU) for employer registration. Relevant credentials include CSLB C-22 Asbestos Abatement classification or asbestos certification (work ≥100 sq ft), Cal/OSHA (DOSH) asbestos contractor/employer registration via ACRU.
Who do I notify before asbestos work in California, and how far in advance?
Notifications go to the Local Air Quality Management/Pollution Control Districts under CARB oversight (NESHAP); Cal/OSHA district office for the worksite notice (Asbestos NESHAP, 40 CFR Part 61, Subpart M (via CARB/air districts); Cal/OSHA notice under 8 CCR §1529). Required advance notice: 10 working days (air-district NESHAP notice); 24 hours (Cal/OSHA temporary-worksite notice).
Do the federal OSHA and EPA asbestos rules still apply in California?
Yes. Federal OSHA 29 CFR 1926.1101, EPA NESHAP (40 CFR 61, Subpart M), and AHERA worker accreditation apply nationwide — California's rules layer on top of them, not instead of them.
Ready to simplify compliance?
Start your 14-day free trial. No credit card required.