(a) Except as provided in paragraph (b) of this section, OWCP may request that an employee undergo an evaluation of his or her permanent impairment that specifies the percentage points that are the result of the employee's covered illness or illnesses. To be of any probative value, such evaluation must be performed by a physician who meets the criteria OWCP has identified for physicians performing impairment evaluations for the pertinent covered illness or illnesses in accordance with the AMA's Guides.

(b) In lieu of submitting an evaluation requested by OWCP under paragraph (a) of this section, an employee may obtain an impairment evaluation at his own initiative and submit it to OWCP for consideration. Such an evaluation will be deemed to have sufficient probative value to be considered in the adjudication of impairment benefits by OWCP only if:

(a) OWCP will pay for one impairment evaluation obtained by an employee if it meets the criteria set out in § 30.905(b), unless it was performed by a physician prior to the date that the claim for Part E benefits is filed, or obtained for a claim in which OWCP finds that the employee did not contract a covered illness. At its discretion, OWCP may direct that the employee undergo additional evaluations. OWCP will pay for any such additional evaluations and will reimburse the employee for any reasonable and necessary costs incident to the evaluations, as described in §§ 30.404 and 30.412 of this part.

(b) Except for one impairment evaluation obtained pursuant to § 30.905(b) and meeting the criteria set out in § 30.905(b)(1), (2) and (3), the employee must pay for any impairment evaluations not directed by OWCP.

(a) An employee may submit arguments challenging an impairment evaluation, and/or additional medical evidence of impairment, before the district office issues a recommended decision on his or her claim. However, the district office will not consider an additional impairment evaluation, even if it differs from the impairment evaluation obtained under § 30.905 or § 30.906, if it does not meet the criteria listed in § 30.905(b)(1), (2) and (3).

(b) If the district office obtains an additional impairment evaluation that differs from the impairment evaluation obtained under § 30.905 or § 30.906, the district office will base its recommended determinations regarding impairment upon the evidence it considers to have the greatest probative value, after evaluating all relevant evidence of impairment in the record, including evidence from directed impairment evaluations and referee impairment evaluations, if any, that it deems necessary pursuant to §§ 30.410 and 30.411 of this part.

(a) If an employee submits an additional impairment evaluation that differs from the impairment evaluation relied upon by the district office, the FAB will not consider the additional impairment evaluation if it does not meet the criteria listed in § 30.905(b)(1), (2) and (3).

(b) The employee shall bear the burden of proving that the additional impairment evaluation submitted is more probative than the evaluation relied upon by the district office to determine the employee's recommended impairment rating.

(c) If an employee submits an additional impairment evaluation that differs from the impairment evaluation relied upon by the district office, the FAB will review all relevant evidence of impairment in the record, and will base its determinations regarding impairment upon the evidence it considers to be most probative. The FAB will determine the impairment rating after it has evaluated all relevant evidence and argument in the record.