D.C. Mun. Regs. tit. 7, § 159
159.1 Burden of Proof, Initial Determination. Claimant has the burden to prove, by a preponderance of the evidence (more likely than not)
(a) That the injury was work related; and
(b) The extent and nature of Claimant's injuries and disability.
159.2 Burden of Proof, Termination or Modification of Award. If the Agency seeks to terminate or modify an award, it must present substantial evidence that the Program had reason to believe the claimant's condition has sufficiently changed to warrant modification or termination of benefits. Once the Agency presents such evidence, the claimant has the burden to prove, by a preponderance of the evidence, the entitlement to ongoing benefits, as well as the nature and extent of disability.
159.3 Burden of Proof, Recurrence of Disability. The claimant has the burden to prove by clear and convincing evidence that a recurrence of disability is causally related to the original injury.
159.4 Burden of Proof, Permanent Disability. The claimant has the burden to prove, by a preponderance of the evidence that he or she is entitled to an award for permanent disability.
SOURCE: Final Rulemaking published at 28 DCR 2307 (May 22, 1981); as amended by Emergency and Proposed Rulemaking published at 57 DCR 9540 (October 8, 2010)[EXPIRED]; as amended by Final Rulemaking published at 57 DCR 12224, 12229 (December 24, 2010); as amended by Final Rulemaking published at 59 DCR 8766, 8771 (July 27, 2012); as amended by Final Rulemaking published at 64 DCR 6325 (July 7, 2017).