(a) An application for reconsideration must be received by OWCP within one year of the date of the OWCP decision for which review is sought.

(b) OWCP will consider an untimely application for reconsideration only if the application demonstrates clear evidence of error on the part of OWCP in its most recent merit decision. The application must establish, on its face, that such decision was erroneous.

(c) The year in which a claimant has to timely request reconsideration shall not include any period subsequent to an OWCP decision for which the claimant can establish through probative medical evidence that he or she is unable to communicate in any way and that his or her testimony is necessary in order to obtain modification of the decision.