Umpires and Referees

The International Association of Approved Basketball Officials provides information on training schools, requirements, and other information for becoming a basketball official.
International Association of Approved Basketball Officials (IAABO)
PO Box 355
Carlisle, PA, 17013-0355
Tel: (717) 713-8129
Fax: (717) 718-6164
Email: info@iaabo.org
https://www.iaabo.org

This Web site provides information about umpire training schools and career-related resources.
Major League Baseball Umpire Camps
1271 Avenue of the Americas
New York, NY, 10020
Tel: (866) 244-2291
Email: mlbumpirecamps@mlb.com
https://www.mlb.com/official-information/umpires/camps

This Web site offers a wealth of information on baseball umpiring, including how to become an umpire, and rules and measurements of the game.
Major League Baseball: Umpires
https://www.mlb.com/official-information/umpires

The National Association of Sports Officials provides information on how to become a sports official in various sports and offers a wide variety of officiating training publications and videos.
National Association of Sports Officials (NASO)
2017 Lathrop Avenue
Racine, WI, 53405-3758
Tel: (262) 632-5448
Fax: (262) 632-5460
Email: customerservice@naso.org
https://www.naso.org

The Wendelstedt School for Umpires is recognized by Major League Baseball for the Umpire Development Program.
Wendelstedt Umpire School
88 S. St. Andrews Dr.
Ormond Beach, FL, 32174-3857
Tel: (800) 818-1690
https://www.umpireschool.com