No person shall be permitted to receive an exposure to radon gas in excess of four working level months in any calendar year.
4 Va. Admin. Code § 25-40-3300
Statutory Authority
§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.
No person shall be permitted to receive an exposure to radon gas in excess of four working level months in any calendar year.
4 Va. Admin. Code § 25-40-3300
Statutory Authority
§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.