§10.321. What happens if the opinion of the physician selected by OWCP differs from the opinion of the physician selected by the employee? — Inbound Citations

(b) OWCP may require any kind of non-invasive testing to determine the employee's functional capacity. Failure to undergo such testing will result in a suspension of benefits. In addition, OWCP may direct the employee to undergo a second opinion or referee examination in any case it deems appropriate (see §§ 10.320 and 10.321).