47 CFR § 73.1705 - Time of operation.

---
identifier: "/us/cfr/t47/s73.1705"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "47 CFR § 73.1705 - Time of operation."
title_number: 47
title_name: "Telecommunication"
section_number: "73.1705"
section_name: "Time of operation."
chapter_name: "FEDERAL COMMUNICATIONS COMMISSION"
subchapter_number: "C"
subchapter_name: "BROADCAST RADIO SERVICES"
part_number: "73"
part_name: "RADIO BROADCAST SERVICES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "47 U.S.C. 154, 155, 301, 303, 307, 309, 310, 334, 336, 339."
cfr_part: "73"
---


# 73.1705 Time of operation.

(a) Commercial and noncommercial educational TV and commercial FM stations will be licensed for unlimited time operation. Application may be made for voluntary share-time operation.

(b) Noncommercial educational FM stations will be licensed for unlimited and share time operation according to the provisions of § 73.561.

(c) AM stations in the 535-1705 kHz band will be licensed for unlimited time. In the 535-1605 kHz band, stations that apply for share time and specified hours operations may also be licensed. AM stations licensed to operate daytime-only and limited-time may continue to do so; however, no new such stations will be authorized, except for fulltime stations that reduce operating hours to daytime-only for interference reduction purposes.

[43 FR 45849, Oct. 4, 1978, as amended at 56 FR 64872, Dec. 12, 1991]