Each individual working with or in the presence of radioactive materials or other radiation sources is required to receive training or provide documentation showing they have received training, in the applicable provisions of regulations and license conditions, in the potential health problems associated with exposure to radiation, in the precautions and procedures required for safe use of radiation, and in the proper use of protective and measurement devices (10 CFR 19.12).  The extent of the training is to be commensurate with the potential risk of radiation exposure to the individual.

Students who use small, non-dispersible radiation sources shall receive appropriate training by the laboratory instructor provided:

• The use of the source is a part of a scheduled laboratory course under the supervision of an instructor who is either a qualified "Responsible User" or designated by the Responsible User for use of the source, AND;
• The estimated individual effective dose equivalent is less than 10% of the public dose limit of 100 mrem/year.