27 CFR §555.23
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The Director shall compile a list of explosive materials, which shall be published and revised at least annually in the Federal Register. The “List of Explosive Materials” (ATF Publication 5400.8) is available at no cost upon request from the ATF Distribution Center (See § 555.21).