32 C.F.R. § 655.10
(a) As used in this section:
Agreement State has the same meaning as provided in 10 CFR 30.4.
Byproduct material has the same meaning as provided in 10 CFR 20.1003.
Radiation has the same meaning as provided in 10 CFR 20.1003.
Radioactive material includes byproduct material, source material, and special nuclear material.
Source material has the same meaning as provided in 10 CFR 20.1003.
Special nuclear material has the same meaning as provided in 10 CFR 20.1003.
(b) Army radiation permits are required for use, storage, or possession of ionizing radiation sources by non-Army entities (including their civilian contractors) on an Army installation. Such use, storage, or possession of ionizing radiation sources must be in connection with an activity of the Department of Defense or in connection with a service to be performed on the installation for the benefit of the Department of Defense, in accordance with 10 U.S.C. 2692(b)(1). Approval by the garrison commander is required to obtain an Army radiation permit. For the purposes of this section, an ionizing radiation source is:
(g) The garrison commander may approve the application only if the applicant provides evidence to show that one of the following is true: