29 CFR §1620.23
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The establishment by collective bargaining or inclusion in a collective bargaining agreement of unequal rates of pay does not constitute a defense available to either an employer or to a labor organization. Any and all provisions in a collective bargaining agreement which provide unequal rates of pay in conflict with the requirements of the EPA are null and void and of no effect.