6 Colo. Code Regs. § 1007-1-4.8

Current through Register Vol. 47, No. 11, June 10, 2024

Section 6 CCR 1007-1-4.8 - Determination of External Dose from Airborne Radioactive Material

4.8.1 Licensees or registrants shall, when determining the dose from airborne radioactive material, include the contribution to the deep dose equivalent, lens dose equivalent, and shallow dose equivalent from external exposure to the radioactive cloud. See Appendix 4B, footnotes 1 and 2.

4.8.2 Airborne radioactivity measurements and DAC values shall not be used as the primary means to assess the deep dose equivalent when the airborne radioactive material includes radionuclides other than noble gases or if the cloud of airborne radioactive material is not relatively uniform. The determination of the deep dose equivalent to an individual shall be based upon measurements using instruments or individual monitoring devices.

6 CCR 1007-1-4.8

Colorado Register, Vol 37, No. 14. July 25, 2014, effective 8/14/2014

38 CR 02, January 25, 2015, effective 2/14/2015

38 CR 05, March 10, 2015, effective 3/30/2015

38 CR 12, June 25, 2015, effective 7/15/2015

38 CR 14, July 25, 2015, effective 8/14/2015

39 CR 02, January 25, 2016, effective 2/14/2016

39 CR 16, August 25, 2016, effective 9/14/2016

39 CR 22, November 25, 2016, effective 12/15/2016

40 CR 11, June 10, 2017, effective 6/30/2017

40 CR 20, October 25, 2017, effective 11/14/2017

42 CR 24, December 25, 2019, effective 1/14/2020

43 CR 14, July 25, 2020, effective 8/14/2020

43 CR 18, September 25, 2020, effective 10/15/2020

44 CR 11, June 10, 2021, effective 7/15/2021

44 CR 14, July 25, 2021, effective 8/14/2021

45 CR 22, November 25, 2022, effective 12/15/2022