1. (a) In addition to the general requirements in He-P 4043.05, the following requirements in this section apply. A person requesting DHHS/RHS approval for a RGD to be used in personnel security screening or vehicle screening with intended exposure of human occupants to the primary beam for public protection shall submit documentation to DHHS/RHS showing how the dose limits noted in the below paragraphs will be met.
2. (b) As part of the application, the applicant shall provide an evaluation of all known alternate methods that could achieve the goals of the security screening program, and why these methods will not be used in preference to the proposed approach utilizing ionizing radiation.
3. (c) RGDs used for non-healing arts personnel security screening of humans shall be evaluated every 12 months by a qualified expert for optimization of image quality and radiation dose.
4. (d) For general-use screening systems, where the system is used without regard to the number of individuals scanned or number of scans per individual in a year, an effective dose for a single complete screening shall be limited to 0.25 µSv (25 µrem).
5. (e) For limited-use screening systems, where equipment is capable of operation greater than 0.25 µSv (25 µrem) per screening, and is used with discretion, the effective dose per screening shall be less than or equal to 0.01 mSv (1 mrem).
6. (f) Individuals subject to repeat security screening at a single venue shall not receive an effective does greater than 0.25 mSv (25 mrem) in any one year at the registrant or licensee’s facility.
7. (g) When the procedures for operation of a mobile or fixed RGD used for security screening of vehicles includes knowingly exposing human occupants to the primary beam when screening vehicles, structures, or containers, the system shall be subject to the same requirements as general-use or limited-use systems as provided in He-P 4043.13(a)-(e).
8. (h) If the requirements in He-P 4043.13(c)-(e) cannot be met if vehicle occupants are knowingly exposed to the primary beam of a security screening system, then there shall be means to assure the occupied portion of the vehicle is outside of the scan area while the primary beam is emitted or procedures shall be established and implemented to assure that no occupants are present in the vehicle during screening.
9. (i) The effective dose to an individual for a single inadvertent exposure to the primary beam shall not exceed 5 mSv (500 mrem) and should not exceed 1 mSv (100 mrem). The reliability of the procedure used to assure that there are no occupants of a vehicle to be scanned shall be commensurate with the potential severity of an inadvertent exposure. If the 5 mSv (500 mrem) limit cannot be assured, a pre-screening with a mode or system which can meet the limits in He-P 4043.13(c)-(h). shall be used to verify there are no occupants in the vehicle being examined.

Source. #14336, eff 8-8-25, EXPIRES: 8-8-35