Pub. L. 108-176, tit. I, subtit. D, sec. 189
LIMITATION ON APPROVAL OF CERTAIN PROGRAMS.
SEC. 189. LIMITATION ON APPROVAL OF CERTAIN PROGRAMS. Section 47504(b) is amended by adding at the end the following:“(4) The Secretary shall not approve in fiscal years 2004 through 2007 a program submitted under subsection (a) if the program requires the expenditure of funds made available under section 48103 for mitigation of aircraft noise less than 65 DNL.”.