6 Colo. Code Regs. § 1007-1-9.11

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

Section 6 CCR 1007-1-9.11 - Ventilation Systems

9.11.1 Ventilation systems shall be provided to ensure that personnel entering any area where airborne radioactivity may be produced will not be exposed to airborne radioactive material in excess of those limits specified in Part 4, Appendix 4B, Table 4B1.

9.11.2 A registrant shall not vent, release, or otherwise discharge airborne radioactive material to an unrestricted area which exceeds the limits specified in Part 4, Appendix 4B, Table 4B2, except as authorized pursuant to 4.33.

9.11.3 For purposes of 9.11.1 and 9.11.2, concentrations may be averaged over a period not greater than one year.

9.11.4 Every effort should be made to maintain releases of radioactive material to unrestricted areas as far below the limits prescribed in 9.11.1 and 9.11.2 as is reasonably achievable.

6 CCR 1007-1-9.11

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