RCRA Hazardous Waste (US, 40 CFR 261)
Fiberglass and mineral wool insulation are not a federal hazardous waste under RCRA. They are inert solid waste. Asbestos-containing insulation is hazardous and requires specialized disposal.
Also searched as: rockwool, glass wool, mineral wool, PIR boards
No federal hazardous waste code
Insulation Materials does not carry a federal RCRA hazardous waste code. It is regulated as solid waste under state and local rules, and specifics depend on your state environmental agency.
Not being federally hazardous does not mean it has no value — clean insulation materials is often a recovered commodity with active buyers.
RCRA classifies waste by source, process, and characteristics — not just material. Pick the row that matches how your insulation materials arises; each coded row links to the full waste code definition under 40 CFR Part 261.
Fiberglass, mineral wool, rockwool
Not RCRA hazardous — state/local rules
Asbestos-containing insulation
Contact environmental authority — hazardous
Source: 40 CFR Part 261 — Identification and Listing of Hazardous Waste
Shipping to the EU?
See the EWC code for insulation materials.
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