20 CFR § 1002.19
What activity is protected from employer retaliation by USERRA?
February 18, 2021
An employer must not retaliate against an individual by taking any adverse employment action against him or her because the individual has taken an action to enforce a protection afforded any person under USERRA; testified or otherwise made a statement in or in connection with a proceeding under USERRA; assisted or participated in a USERRA investigation: or, exercised a right provided for by USERRA.