Voluntary Reporting Happening Now For Calendar Year 2025 The Federal Aviation Administration’s 48th annual General Aviation and Part 135 Activity Survey (GA Survey) is now underway, reporting on calendar year 2025. Administered by the research firm Tetra Tech for the past 20 years, the GA Survey samples more than 80,000 aircraft, or about 30% of total registered U.S. aircraft. The survey provides accurate, statistical estimates across all aircraft types, and takes about 10-15 minutes to complete. Data from the survey is aggregated so the FAA can better understand the impact of the general aviation industry on jobs and economic output, and determine investments in aviation infrastructure.