; Public Law 109–54 ) is amended by striking 2016 and inserting 2018 . Use of american iron and steel 426. (a) (1) None of the funds made available by a State water pollution control revolving fund as authorized by section 1452 of the Safe Drinking Water Act ( 42 U.S.C. 300j-12 ) shall be used for a project for the construction, alteration, maintenance, or repair of a public water system or treatment works unless all of the iron and steel products used in the project are produced in the United States. (2) In this section, the term iron and steel products means the following products made primarily of iron or steel: lined or unlined pipes and fittings, manhole covers and other municipal castings, hydrants, tanks, flanges, pipe clamps and restraints, valves, structural steel, reinforced precast concrete, and construction materials. (b) Subsection (a) shall not apply in any case or category of cases in which the Administrator of the Environmental Protection Agency (in this section referred to as the Administrator ) finds that— (1) applying subsection (a) would be inconsistent with the public interest; (2) iron and steel products are not produced in the United States in sufficient and reasonably available quantities and of a satisfactory quality