CFR › Title 27 › Part 555 › §555.20527 CFR §555.205Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkAll explosive materials must be kept in locked magazines meeting the standards in this subpart unless they are:(a)In the process of manufacture;(b)Being physically handled in the operating process of a licensee or user;(c)Being used; or(d)Being transported to a place of storage or use by a licensee or permittee or by a person who has lawfully acquired explosive materials under § 555.106.