(a) The frequencies available for assignment to maritime support stations are described or listed in:
(1) Section 80.373 for scope of communications described in Sec. 80.653(b)(1);
(2) Sections 80.373 and 80.385 for scope of communications described in Sec. 80.653(b)(2); and
(3) Section 80.389 for scope of communications described in Sec. 80.653 (b)(3) and (4).
(b) Frequencies must be used only on a secondary, non-interference basis to operational maritime communications.
(c) Use of frequencies assigned to services other than the maritime radiolocation service is limited to one hour per twenty four hour period. [51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35245, Sept. 18, 1987]