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Airport Funding: Information on Grandfathered Revenue Diversion and Potential Implications of Repeal

What GAO Found

According to the Federal Aviation Administration’s (FAA) data for fiscal years 1995 through 2018, nine airport owners—also known as “airport sponsors”—lawfully diverted airport revenue amounts ranging from $0 to over $840 million by a sponsor in 1 year. These “grandfathered” airport sponsors are currently exempt from federal requirements to use all airport revenue solely for airport purposes (see figure). Together, these sponsors own 32 airports serving millions of passengers a year. Five of these sponsors are city or state governments, which regularly diverted airport revenue into their general funds for government programs and services. Four of these sponsors are transportation authorities, which diverted varying amounts for various transportation-related purposes, such as supporting maritime ports or transit systems. Three of the transportation authorities also secured bonds using revenue from their various activities, including airport revenue, to finance airport and non-airport assets.

Airport Sponsors That Have Reported Grandfathered Revenue Diversion, as of 2018

According to selected stakeholders, a repeal of grandfathered revenue diversion would have complex legal and financial implications for transportation authorities. Transportation authority officials said that a repeal would inherently reduce their flexibility to use revenues across their assets and could lead to a default of their outstanding bonds if airport revenues could no longer be used to service debt; exempting outstanding bonds could alleviate some financial concerns. For city and state government sponsors, a loss in general fund revenue could result in reduced government services, though they said a phased-in repeal could help in planning for lost revenue.

Why GAO Did This Study

In 1982, a federal law was enacted that imposed constraints on the use of airport revenue (e.g., concessions, parking fees, and airlines’ landing fees), prohibiting “diversion” for non-airport purposes in order to ensure use on airport investment and improvement. However, the law exempted “grandfathered” airport sponsors—those with state or local laws providing for such diversion—from this prohibition. Viewpoints vary on whether these airport sponsors should be allowed to continue to lawfully divert revenue.

The FAA Reauthorization Act of 2018 provides for GAO to examine grandfathered airport revenue diversion. This report examines: (1) how much revenue has been diverted annually by grandfathered airport sponsors and how these revenues have been used, and (2) selected stakeholders’ perspectives on potential implications of repealing the law allowing revenue diversion.

GAO analyzed FAA financial data on grandfathered airports’ revenue diversion for fiscal years 1995 through 2018, all years such data were available. GAO also analyzed relevant documents such as state and local laws, and airport sponsors’ bond documents. GAO interviewed FAA officials and relevant stakeholders, including officials from nine grandfathered airport sponsors and representatives from bond-rating agencies, airline and airport associations, and airlines that serve grandfathered airports that were selected based on those with the greatest passenger traffic.

For more information, contact Heather Krause at (202) 512-2834 or