18 C.F.R. § 4.6 Burden of proof.
Title 18 - Conservation of Power and Water Resources
The burden of proof to sustain each item of claimed cost shall be upon the licensee and only such items as are in the opinion of the Commission supported by satisfactory proof may be entered in the electric plant accounts of the licensee. [Order 53, 44 FR 61948, Oct. 29, 1979]
Title 18: Conservation of Power and Water Resources
PART 4—LICENSES, PERMITS, EXEMPTIONS, AND DETERMINATION OF PROJECT COSTS
Subpart A—Determination of Cost of Projects Constructed Under License
§ 4.6 Burden of proof.

