The substantive changes will be in the training and experience requirements for users, requirements for use and calibration of high dose rate remote afterloaders, and gamma stereotactic radiosurgery units. This rule development will review most of the rules in Chapter 64E-5, F.A.C., pertaining to the medical use of radioactive materials. This rule will also address a minor U.S. Nuclear Regulatory Commission wording issue regarding temporary job sites and how the department recognizes out of state licenses that use radioactive materials under reciprocity.