Sec. 90.175  Frequency coordination requirements.

    Except for applications listed in paragraph (f) of this section, 
each application for a new frequency assignment, for a change in 
existing facilities as listed in Sec. 90.135(a), or for operation at 
temporary locations in accordance with Sec. 90.137, must include a 
showing of frequency coordination as set forth below. An application to 
reinstate a license expired for more than thirty (30) days will be 
considered as a request for a new frequency assignment.
    (a) Frequency coordinators may request, and applicants are required 
to provide, all appropriate technical information, system requirements, 
and justification for requested station parameters when such information 
is necessary to identify and recommend the most appropriate frequency. 
Additionally, applicants bear the burden of proceeding and the burden of 
proof in requesting the Commission to overturn a coordinator's 
recommendation.
    (b) For frequencies between 25 and 470 MHz: A statement is required 
from the applicable frequency coordinator as specified in 
Secs. 90.20(c)(2) and 90.35(b)(2) recommending the most appropriate 
frequency. The coordinator's recommendation may include comments on 
technical factors such as power, antenna height and gain, terrain, and 
other factors which may serve to minimize potential interference.
    (c) For frequencies above 800 MHz: When frequencies are shared by 
more than one service, concurrence must be obtained from the other 
applicable certified coordinators.
    (d) For frequencies in the 450-470 MHz band: When used for secondary 
fixed operations, frequencies shall be assigned and coordinated pursuant 
to Sec. 90.261.
    (e) For frequencies between 470 and 512 MHz, 806-824/851-869 MHz, 
and 896-901/935-940 MHz: A statement is required

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from the applicable coordinator recommending specific frequencies that 
are available for assignment in accordance with the loading standards 
and mileage separations applicable to the specific radio serve, 
frequency pool, or category of user involved.
    (f) For frequencies in the 929-930 MHz band. A statement from the 
coordinator recommending the most appropriate frequency. For 
applications under Sec. 90.495, the coordinator's statement must verify 
that the proposed system meets the requirements of that section.
    (g) Any recommendation submitted in accordance with paragraphs (a), 
(c), (d), or (e) of this section is advisory in character and is not an 
assurance that the Commission will grant a license for operation on that 
frequency. Therefore, applicants are strongly advised not to purchase 
radio equipment operating on specific frequencies until a valid 
authorization has been obtained from the Commission.
    (h) Applications for facilities near the Canadian border north of 
line A or east of line C in Alaska may require coordination with the 
Canadian government. See Sec. 1.955 of this chapter.
    (i) The following applications need not be accompanied by evidence 
of frequency coordination:
    (1) Applications for frequencies below 25 MHz.
    (2) Applications for a Federal Government frequency.
    (3) Applications for frequencies in the 72-76 MHz band except for 
mobile frequencies subject to Sec. 90.35(c)(77).
    (4) Applications for a frequency to be used for developmental 
purposes.
    (5) Applications in the Industrial/Business Pool requesting a 
frequency designated for itinerant operation only.
    (6) Applications in the Radiolocation Service.
    (7) [Reserved]
    (8) Applications for frequencies listed in the SMR tables contained 
in Secs. 90.617 and 90.619.
    (9) Applications indicating license assignments such as change in 
ownership, control or corporate structure if there is no change in 
technical parameters.
    (10) Applications for mobile stations operating in the 470-512 MHz 
band or above 800 MHz if the frequency pair is assigned to a single 
system on an exclusive basis in the proposed area of operation.
    (11) Applications for add-on base stations in multiple licensed 
systems operating in the 470-512 MHz band or above 800 MHz if the 
frequency pair is assigned to a single system on an exclusive basis.
    (12) Applications for control stations operating below 470 or above 
800 MHz and meeting the requirements of Sec. 90.119(a)(2)(ii).
    (13) Applications for frequencies in the 216-220 and 1427-1435 MHz 
bands.
    (14) Applications for frequencies in the 220-222 MHz band.
    (15) Applications timely-filed by recipients of a finder's 
preference, where the applicant intends to operate at the same site 
location, and with the same technical parameters as the prior licensee.
[ 51 FR 14998 , Apr. 22, 1986, as amended at  51 FR 36014 , Oct. 8, 1986;  53 FR 1024 , Jan. 15, 1988;  54 FR 4030 , Jan. 27, 1989;  54 FR 39740 , Sept. 
28, 1989;  56 FR 19602 , Apr. 29, 1991;  56 FR 65859 , Dec. 19, 1991;  57 FR 48739 , Oct. 28, 1992;  57 FR 60135 , Dec. 18, 1992;  58 FR 62291 , Nov. 26, 
1993;  60 FR 37261 , July 19, 1995;  62 FR 18925 , Apr. 17, 1997]

    Effective Date Note: At  62 FR 18925 , Apr. 17, 1997, Sec. 90.175 was 
amended by removing the last sentence of the introductory text and 
paragraph (g), redesignating paragraphs (b) through (f) as paragraphs 
(e) through (i) respectively, redesignating paragraph (a) as paragraph 
(b), adding new paragraphs (a), (c), and (d), and revising newly 
redesignated paragraphs (b) and (e), (i)(3), and (i)(5), and the first 
sentence of newly redesignated paragraph (g), effective Oct. 17, 1997.