This is the truth about Equal Pay Grade for Equal Work. Even with everything exactly the same where you live can limit your promotion potential. This has to change. EEO laws are only about equal pay for different genders or races. You can pay two women different salaries for any reason in the Federal Government and it can still be legal.
This is against the principle of “Equal Pay for Equal Work!” Legal and Wrong
But what about – 5 Code 51? There are loopholes. You can be hired and placed in Excepted Service, provide your college transcript, be selected after they interviewed several candidates, work for 10 years and have excellent reviews and still they don’t have to follow equal pay laws. https://www.ecfr.gov/current/title-5/chapter-I/subchapter-B/part-213
(1)in determining the rate of basic pay which an employee will receive—
(A) the principle of equal pay for substantially equal work will be followed; and
(B)variations in rates of basic pay paid to different employees will be in proportion to substantial differences in the difficulty, responsibility, and qualification requirements of the work performed and to the contributions of employees to efficiency and economy in the service; and
https://www.osec.doc.gov/opog/dmp/daos/dao202_302.html
https://www.ecfr.gov/current/title-5/chapter-I/subchapter-B/part-213