10 Guam Code Ann. § 31102
(a) Radioactive material means any material, solid, liquid or gas, which emits ionizing radiation spontaneously;
(b) Ionizing radiation means gamma rays and x-rays, beta particles, alpha particles and high-speed nuclear particles;
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10 Guam Code Ann. HEALTH AND SAFETY
CH. 31 RADIOLOGICAL HEALTH
(c) Source of ionizing radiation means a device or material that emits ionizing radiation;
(d) Registration means registration by a person possessing a radiation machine;
(e) General license means a license effective pursuant to rules and promulgated by the Department without the filing of an application to transfer, acquire, own, possess or use quantities of or devices or equipment utilizing radioactive material; and
(f) Specific license means a license issued after application to use, manufacture, produce, transfer, receive, acquire, own or possess quantities of or devices or equipment utilizing radioactive material.
SOURCE: GC § 9610.1.