U.S. Environmental Protection Agency (EPA), Washington, D.C. (12 April 2013). "Final National Pollutant Discharge Elimination System (NPDES) General Permit for Discharges Incidental to the Normal Operation of a Vessel." Federal Register. 78 FR21938.
DOD and EPA (11 January 2017). "Uniform National Discharge Standards for Vessels of the Armed Forces-Phase II Batch One." Federal Register, 82 FR3173.