You may not bring family or friends into an OWCP examination. You may bring a physician to a second opinion (“SECOP”) examination arranged by or for OWCP.
Embrace it. (And here's why.)
The purpose of the FECA is to restore lost wages for injured federal employees. In the event that you are placed in a position that pays less than your benefits, OWCP will continue to send you a supplemental monthly check equal to the difference between your benefits and your new wages.