“ To amend the Internal Revenue Code of 1986 to extend the funding and expenditure authority of the Airport and Airway Trust Fund, to amend title 49, United States Code, to extend authorizations for the airport improvement program, and for other purposes. ”

“ Program implementation.—For purposes of calculating funding apportionments and meeting other requirements under sections 47114, 47115, 47116, and 47117 of title 49, United States Code, for the 7-month period beginning on October 1, 2009, the Administrator of the Federal Aviation Administration shall— (A) first calculate funding apportionments on an annualized basis as if the total amount available under section 48103 of such title for fiscal year 2010 were $4,000,000,000; and (B) then reduce by 42 percent— (i) all funding apportionments calculated under subparagraph (A) ”

“ Section 47115 (j) of such title is amended by striking ‘‘April 1, 2010,’’ and inserting ‘‘May 1, 2010,’’. (f) Section 47141 (f) of such title is amended by striking ‘‘March 31, 2010.’’ and inserting ‘‘April 30, 2010.’’. (g) Section 49108 of such title is amended by striking ‘‘March 31, 2010,’’ and inserting ‘‘April 30, 2010,’’. (h) Section 161 of the Vision 100—Century of Aviation Reauthorization Act (49 U.S.C. 47109 note) is amended by striking ‘‘April 1, 2010,’’ and inserting ‘‘May 1, 2010,’’. ”