18 C.F.R. § 1304.9 Initiation of construction.
Title 18 - Conservation of Power and Water Resources
A permit issued pursuant to this part shall expire unless the applicant initiates construction within eighteen (18) months after the date of issuance.
Title 18: Conservation of Power and Water Resources
PART 1304—APPROVAL OF CONSTRUCTION IN THE TENNESSEE RIVER SYSTEM AND REGULATION OF STRUCTURES AND OTHER ALTERATIONS
Subpart A—Procedures for Approval of Construction
§ 1304.9 Initiation of construction.

