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If the only evidence of covered employment submitted by the claimant is a written affidavit or declaration subject to penalty of perjury by the employee, survivor or any other person, and DOE or another entity either disagrees with the assertion of covered employment or cannot concur or disagree with the assertion of covered employment, then OWCP will evaluate the probative value of the affidavit in conjunction with the other evidence of employment, and may determine that the claimant has not met his or her burden of proof under § 30.111.