Regulations / State
Delaware asbestos regulations.
Who licenses asbestos work in Delaware, 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 Delaware is licensed/accredited through the Delaware Division of Public Health — Asbestos Certification & Training Program (16 Del. C. Ch. 78) under 19 Del. Admin. Code 4103; 16 Del. C. Chapter 78.
Credentials the state issues:
- Asbestos Abatement Contractor Class A (Unlimited)
- Asbestos Abatement Contractor Class B
- Asbestos Worker
Notification
Notifications go to the Delaware DNREC, Division of Air Quality under 16 Del. C. Chapter 78; 7 DE Admin. Code 1106 & 1121.
- Advance notice: 10 working days before renovation or demolition begins.
- 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 Delaware has no state license, the federal accreditation and NESHAP notification requirements are the floor.
Delaware-specific notes
- Certification (Public Health) and notification (DNREC Air Quality) are separate.
- Notification submitted electronically via the DNREC e-permitting portal.
- Renovation notice threshold: 260 linear ft / 160 sq ft / 35 cu ft.
- Contractor certificate valid one year.
Official sources
- DNREC Building Renovation & Demolition (asbestos)
- 19 Del. Admin. Code 4103-6.0 (Class A & B)
- Delaware Code Title 16 Chapter 78
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: Exact certification-program agency name and any worker/supervisor categories beyond Class A/B contractor + worker not fully confirmed; official licensing landing page not located.
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 Delaware DNREC, Division of Air Quality and read the actual rule before making a compliance decision.
Delaware asbestos: common questions
Do I need a license to do asbestos abatement in Delaware?
Yes — Delaware regulates who can perform asbestos abatement. Delaware Division of Public Health — Asbestos Certification & Training Program (16 Del. C. Ch. 78). Relevant credentials include Asbestos Abatement Contractor Class A (Unlimited), Asbestos Abatement Contractor Class B, Asbestos Worker.
Who do I notify before asbestos work in Delaware, and how far in advance?
Notifications go to the Delaware DNREC, Division of Air Quality (16 Del. C. Chapter 78; 7 DE Admin. Code 1106 & 1121). Required advance notice: 10 working days before renovation or demolition begins.
Do the federal OSHA and EPA asbestos rules still apply in Delaware?
Yes. Federal OSHA 29 CFR 1926.1101, EPA NESHAP (40 CFR 61, Subpart M), and AHERA worker accreditation apply nationwide — Delaware's rules layer on top of them, not instead of them.
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