A licensee must maintain records specified under part 4731.4090 of equipment problems found in daily checks and quarterly inspections of radiographic exposure devices, transport and storage containers, associated equipment, source changers, and survey instruments and retain each record for three years after it is made.
The records under subpart 1 must include:
Minn. R. agency 144, ch. 4731, INDUSTRIAL RADIOGRAPHY, pt. 4731.4270
Statutory Authority: MS s 144.1202; 144.1203