27.110—Applicability.
        
        (b) 
         This part does not apply to facilities regulated pursuant to the Maritime Transportation Security Act of 2002, Pub. L. 107-295, as amended; Public Water Systems, as defined by  section 1401 of the Safe Drinking Water Act, Pub. L. 93-523, as amended; Treatment Works as defined in  section 212 of the Federal Water Pollution Control Act, Pub. L. 92-500, as amended; any facility owned or operated by the Department of Defense or the Department of Energy, or any facility subject to regulation by the Nuclear Regulatory Commission.