MAXIMUM OBLIGATION OF THE UNITED STATES.

SEC. 109. MAXIMUM OBLIGATION OF THE UNITED STATES.Section 512(b)(3) of the Airport and Airway Improvement Act of 1982 (49 U.S.C. App. 2211(b)(3)) is amended by striking the period at the end and inserting the following: “; except that, for seal year 1993 and thereafter, for grants for the acquisition of land or interests in land, the maximum obligation of the United States may be increased for an airport (other than a primary airport) either by not more than 15 percent or by an amount not to exceed 25 percent of the total increase in allowable project costs attributable to the acquisition of land or interests in land, whichever is greater, based on current credible appraisals or a court award in a condemnation proceeding.”.