Joining ESC Local 20 in 1974, Clinical Laboratory Scientists (CLS) at Kaiser Permanente locations throughout Northern California make up ESC Local 20’s largest bargaining unit in our Medical Professionals Unit. In 2010, this bargaining unit grew to include the newly created Medical Laboratory Technician (MLT) classification. CLSs and MLTs ensure physicians have the data and information needed to diagnose and treat patients; without them, a doctor is just guessing.

Through the Kaiser Labor Management Partnership and professional organizations, like CAMLT and PAMET, ESC Local 20 Lab Professionals are committed to advancing, elevating, and increasing understanding of the important work done in Clinical Labs.

Professionals represented by this contract are part of the Union’s Medical Professionals Unit.