; and (2) by inserting after reduction the following: “if the change has occurred during the longer of— (1) the noise exposure map period forecast by the airport operator under subsection (a); or (2) the implementation timeframe of the operator’s noise compatibility program . 1218. Provision of facilities Section 44502 is amended by adding at the end the following: (f) Airport space (1) Restriction The Administrator may not require an airport owner or sponsor (as defined in section 47102) to provide to the Federal Aviation Administration without cost any of the following: (A) Building construction, maintenance, utilities, or expenses for services relating to air traffic control, air navigation, or weather reporting. (B) Space in a facility owned by the airport owner or sponsor for services relating to air traffic control, air navigation, or weather reporting. (2) Rule of construction Nothing in this subsection may be construed to affect— (A) any agreement the Secretary may have or make with an airport owner or sponsor for the airport owner or sponsor to provide any of the items described in subparagraph (A) or subparagraph (B) of paragraph (1) at below-market rates