30 CFR Topic
Radiation—Underground Only
July 29, 2020
§
57.5037
Radon daughter exposure monitoring
§
57.5038
Annual exposure limits
§
57.5039
Maximum permissible concentration
§
57.5040
Exposure records
§
57.5041
Smoking prohibition
§
57.5042
Revised exposure levels
§
57.5044
Respirators
§
57.5045
Posting of inactive workings
§
57.5046
Protection against radon gas
§
57.5047
Gamma radiation surveys