; and (B) by striking federal and inserting Federal ; and (2) in subparagraph (C)— (A) by striking Section and inserting section ; (B) by striking 402(p)(6) and inserting subsection (p)(6) ; (C) by striking 402(l)(3)(A), and inserting subparagraph (A), ; and (D) by striking 402(l)(3)(A). and inserting such subparagraph. . (c) Expression of water quality-based effluent limitations Section 402 of the Federal Water Pollution Control Act ( 33 U.S.C. 1342 ) is amended by adding at the end the following: (t) Expression of water quality-based effluent limitations If the Administrator (or a State, in the case of a permit program approved by the Administrator) determines that a water quality-based limitation on a discharge of a pollutant is necessary to include in a permit under this section in addition to any appropriate technology-based effluent limitations included in such permit, the Administrator (or the State) may include such water quality-based limitation in such permit only in the form of an effluent limitation that specifies— (1) the pollutant to which it applies; and (2) the numerical limit on the discharge of such pollutant, or the precise waterbody conditions to be attained with respect to such pollutant, required to comply with the permit. . 6. Reducing permitting uncertainty (a) In general Section 404(c) of the Federal Water Pollution Control Act ( 33 U.S.C. 1344(c) ) is amended— (1) by striking (c) The Administrator and inserting the following: (c) Specification or use of defined area (1) In general The Administrator ; (2) in paragraph (1), as so designated, by inserting during the period described in paragraph (2) and before after notice and opportunity for public hearings