USPS was exempt but supposedly falls under OSHA.

Excerpts from article:

But not included in the executive orders are mandates for members of federal employees in the legislative or judicial branches, including members of Congress, their staffers, as well as federal judges and other court employees.

Likewise, because federal courts are not under the executive branch, federal judges and their staffers are not covered under Biden’s sweeping mandate.

Surprised this wasn't already posted earlier here.