CFR /  Title 10  /  Part 35  /  Sec. 35.2404 Records of surveys after source implant and removal.

A licensee shall maintain a record of the surveys required by Sec. Sec. 35.404 and 35.604 for 3 years. Each record must include the date and results of the survey, the survey instrument used, and the name of the individual who made the survey.