; (ii) a capacity, management, operation, and maintenance program for sanitary sewer collection systems; (iii) a municipal stormwater discharge; (iv) a municipal wastewater discharge; and (v) a water quality-based effluent limitation to implement an applicable wasteload allocation in a total maximum daily load. (3) Compliance schedules (A) In general A permit for a municipal discharge by a municipality that incorporates an integrated plan may include a schedule of compliance, under which actions taken to meet any applicable water quality-based effluent limitation may be implemented over more than 1 permit term if the compliance schedules are authorized by State water quality standards. (B) Inclusion Actions subject to a compliance schedule under subparagraph (A) may include green infrastructure if implemented as part of a water quality-based effluent limitation. (C) Review A schedule of compliance may be reviewed each time the permit is renewed. (4) Existing authorities retained (A) Applicable standards Nothing in this subsection modifies any obligation to comply with applicable technology and water quality-based effluent limitations under this Act. (B) Flexibility Nothing in this subsection reduces or eliminates any flexibility available under this Act, including the authority of— (i) a State to revise a water quality standard after a use attainability analysis under section 131.10(g) of title 40, Code of Federal Regulations (as in effect on the date of enactment of this subsection), subject to the approval of the Administrator under section 303(c)