This is a document called “User Charges: Panacea or Pitfall?” produced by the Aircraft Owners and Pilots Association (AOPA) in 1969 to provide policy justification for their opposition to the concept of having to pay user charges or user taxes for air traffic control services. The document was submitted for the record in the House Ways and Means Committee’s September 1969 hearings on the Nixon Administration’s proposed aviation excise taxes. The page numbers at the top of the PDF file are from the bound Ways and Means hearings so they begin on page 106.