25 Pa. Code § 227a.49
In addition to meeting the requirements of § 227a.21 (relating to instruction and training), an individual may not operate or maintain an open-beam radiation-producing device unless the individual has received training applicable to the procedures to be performed and the specific equipment used. This training may include more specific and detailed instruction in, and demonstrated competence as to, the following:
This section cited in 25 Pa. Code § 227a.50 (relating to handheld radiation-producing devices).