California Associate Staff (CAS) is the exclusive bargaining entity for Associate Staff employed by the California Teachers Association. CAS was incorporated in 1971.
NSO is the the world’s largest union of union staff. It has grown from a mere 35 members in a handful of states in 1969, to 4,093 (as of August 2018) from 89 affiliates in 50 states.
Founded in 1863, the California Teachers Association has become one of the strongest advocates for educators in the country.