Rule 62-621.300(7), regulates discharges of municipal stormwater from Phase II MS4s to surface waters of the state, were developed to revise and update the permit language in the “NPDES Two-Step Generic Permit for Discharge of Stormwater from Phase II Municipal Separate Storm Sewer Systems,” DEP Form 62-621.300(7)(a), and to update “Notice of Intent to Use Two-Step Generic Permit for Discharge of Stormwater from Phase II Municipal Separate Storm Sewer Systems,” DEP Form 62-621.300(7)(b), and to incorporate by reference “Phase II MS4 Annual Report,” DEP Form 62-621.300(7)(d).