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LX — Professional Librarians

American Federation of Teachers (AFT)

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The Professional Librarians Unit (LX) is a systemwide bargaining unit of non-supervisory professional librarians who provide vital services to maintain the highest quality academic, scientific and medical library facilities at all UC campuses and medical centers and the Lawrence Berkeley National Laboratory (LBNL). The unit is represented by the American Federation of Teachers (AFT). Currently, the unit includes approximately 347* employees.

An approximate breakdown of the number of Professional Librarians at each location is as follows:

LocationHeadcount
ANR0
Berkeley66
Davis31
Irvine31
Los Angeles100
Merced8
Office of the President0
Riverside20
San Diego36
San Francisco12
Santa Barbara23
Santa Cruz20
Total347
*Systemwide Labor Relations census, October 2025