• History Museums

• 523.

Army Air Corps Library and Museum

Honoring Veterans: WWI, WWII, Korea, Vietnam, OIF, OEF.

• Military/Veterans' Organizations

• 524.

Air Force Association

The official Twitter account of the Lance P.

• Real Estate Organizations

• 525.

304 Pennsylvania Avenue Corporation

The official account for the Air Line Pilots Association, Int'l, representing more than 79,000 pilots at 42 U.

Air Serv International, Inc.

Air Serv International provides last-mile air transportation for humanitarian aid organizations operating in conflict areas.

• Fund Raising and/or Fund Distribution

• 527.

Aloha Aviators

The Aloha Aviators was formed in response to COVID-19 in March 2020.

• Safety Education

• 528.

United States Power Squadrons

Organization of boating friends and families in the San Diego, CA area, who are dedicated to supporting boating safety and enjoyment by teaching courses in boating, seamanship, and navigation, getting together for boat activities and raft ups.

• County/Street/Civic/Multi-Arts Fairs and Festivals

• 529.

TBM VETERANS REUNION ASSOCIATION INC

2025 TBM Avenger Reunion and Salute to Veterans.

• Human Service Organizations

• 530.

NATIONAL AIR FILTRATION ASSOCIATION

NAFA is a non-profit trade association comprised of members engaged in the sale service & manufacture of air filtration products.

• Travelers' Aid

• 531.

RECREATIONAL AVIATION FOUNDATION

RAF is a 501(c)(3) nonprofit that preserves, improves and creates airstrips for recreational access.