The proposed rule adopts and incorporates by reference requirements that are substantively identical to regulations adopted by the United States Environmental Protection Agency (EPA) pursuant to Title 40, Code of Federal Regulations (“CFR”), Part 122 – Subpart B (40 CFR 122.28(d), 122.33, 122.34 and 122.35), as published in the Federal Register (FR) at 81 FR 89320 – 89352. The proposed rule establishes permitting requirements for Phase II MS4s regulated under the Department’s National Pollutant Discharge Elimination System (NPDES) program.