§ 555.205 Movement of explosive materials.
All 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.