No carrier, its officers, or agents shall change the rates of pay, rules, or working conditions of its employees, as a class as embodied in agreements except in the manner prescribed in such agreements or in section 6 of the Railway Labor Act.
source: 11 FR 177A-924, Sept. 11, 1946, unless otherwise noted. Redesignated at 13 FR 8740, Dec. 30, 1948.
cite as: 29 CFR 1204.2