Association of Minor League Umpires

Established in 1999, the Association of Minor League Umpires (AMLU) is a national labor union that represents professional baseball umpires working in Minor League and Major League Baseball throughout the United States and Canada.

The Association of Minor League Umpires (AMLU) was formed in 1999. AMLU is a national labor union that represents professional baseball umpires working in Minor League and Major League Baseball in the United States and Canada.

In 2010 AMLU members voted to affiliate with Office and Professional Employees International Union. OPEIU is a diverse white-collar and professional based union representing over 125,000 employees in various industries.

Association of Minor League Umpires - Umpire - Major League Baseball

MLB, Official Information, Umpires

Grad walks away from pro umpire career to study law - University of Tennessee College of Law

MLB, Official Information, Umpires

Close Call Sports & Umpire Ejection Fantasy League: Minor League Umpires Receive New 5-Year CBA

Jen Pawol travels rare baseball path as an umpire

MLB, Official Information, Umpires

Major League Umpires - Dan Iassogna, Brian Gorman, Joe West, Mark Wegner, Marvin Hudson, and Ron Kulpa (from left to right)

Membership- Dues Check Off Form - Association of Minor League Umpires

Minor League Baseball Players Demand Spring Training Pay • Stateline

How minor league baseball would look under MLB's proposed restructuring plan - Bless You Boys

What the Spending Bill Could Mean for Minor-League Baseball Players

San Francisco Giants Minor League Baseball roundup, 8/16/23 - McCovey Chronicles

MLB announces modernization of Minor League system - World Baseball Softball Confederation