A licensee must make or cause to be made, surveys of areas, including the subsurface, that:
may be necessary for the licensee to comply with this chapter; and
Notwithstanding part 4731.2510, subpart 1, records from surveys describing the location and amount of subsurface residual radioactivity identified at the site must be kept with records important for decommissioning, and must be retained according to part 4731.0580, subpart 6; 4731.0780, subpart 6; or 4731.3080, subpart 7, as applicable.
Except as otherwise required in this chapter, a licensee must ensure that instruments and equipment used for quantitative radiation measurements, for example, dose rate and effluent monitoring, are calibrated at intervals not to exceed 12 months for the radiation measured.
All personnel dosimeters, except for direct and indirect reading pocket ionization chambers and those dosimeters used to measure the dose to the extremities, that require processing to determine the radiation dose and that are used by a licensee to comply with part 4731.2020, with other applicable provisions of this chapter, or with conditions specified in a license, must be processed and evaluated by a dosimetry processor that:
holds current personnel dosimetry accreditation from the National Voluntary Laboratory Accreditation Program (NVLAP) of the National Institute of Standards and Technology; and
is approved in the accreditation process for the type of radiation or radiations included in the NVLAP program that most closely approximates the type of radiation or radiations for which the individual wearing the dosimeter is monitored.
29 SR 755; 33 SR 1440; 40 SR 145
August 27, 2015
Official Publication of the State of Minnesota
Revisor of Statutes