ACE Practice Test & Exam Prep

The NPIAS organizes airports into three groups that the federal plan uses for planning and funding: commercial service airports, reliever airports, and Select GA airports. Commercial service airports are those with scheduled passenger service and form the backbone of national air transportation, eligible for federal funding to support their operations and growth. Reliever airports exist to relieve congestion at busy commercial airports by handling general aviation activity, helping preserve capacity at those major hubs. Select GA airports are general aviation airports designated for inclusion in the NPIAS due to their regional or national importance, even if they lack scheduled airline service. Other options don’t fit the official grouping: cargo or international types aren’t the NPIAS categories, and terms like primary/secondary/local or domestic/international/local refer to different classification schemes.