StacksVerified U.S. regulatory reference

16 CFR §460.21

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
Do not say or imply that a government agency uses, certifies, recommends, or otherwise favors your product unless it is true. Do not say or imply that your insulation complies with a governmental standard or specification unless it is true.