47 C.F.R. § 87.423 Hours of operation.
Title 47 - Telecommunication
The control tower must render a communications service 24 hours a day unless the Commission determines, in coordination with the NTIA IRAC, that reduced hours of service will not adversely affect life and property in the air. [63 FR 68958, Dec. 14, 1998]
Title 47: Telecommunication
PART 87—AVIATION SERVICES
Subpart O—Airport Control Tower Stations
§ 87.423 Hours of operation.
