CFR

90.311—Frequencies.

(a) Except as provided for in § 90.315 and except for those frequencies allocated to services in part 22 of this chapter (see §§ 22.591, 22.621, 22.651, and 22.1007 of this chapter) the following frequencies in the band 470-512 MHz may be assigned as indicated in the table below. The first and last assignable frequencies are shown. Assignable frequencies occur in increments of 6.25 kHz. The separation between base and mobile transmit frequencies is 3 MHz for two frequency operation.

Channel Assignment	Urbanized Area	General access pool
Channel Assignment	Urbanized Area	Base and mobile	Mobile
14	Boston, MAChicago, IL Cleveland, OH Miami, FL New York/N.E. NJ Pittsburgh, PA	470.30625 to 472.99375	473.30625 to 475.99375
	Los Angeles, CA	470.05625 to 472.99375	473.05625 to 475.99375
15	Chicago, ILCleveland, OH Detroit, MI New York/N.E. NJ	476.30625 to 478.99375	479.30625 to 481.99375
16	Boston, MADallas/Fort Worth, TX Detroit, MI San Francisco/Oakland, CA	482.30625 to 484.99375	485.30625 to 487.99375
	Los Angeles, CA (Use is restricted to Public Safety Pool eligibles)	482.00625 to 484.99375	485.00625 to 487.99375
17	Houston, TXSan Francisco/Oakland, CA Washington, DC/MD/VA	488.30625 to 490.99375	491.30625 to 493.99375
18	Pittsburgh, PAWashington, DC/MD/VA	494.30625 to 496.99375	497.30625 to 499.99375
19	Philadelphia, PA	500.30625 to 502.99375	503.30625 to 505.99375
20	Los Angeles, CA	506.13125 to 508.99375	509.13125 to 511.99375
	Philadelphia, PA	506.30625 to 508.99375	509.30625 to 511.99375

(1) Channel availability in the General Access Pool in any of the urbanized areas referred to in the table depends on whether that channel is presently assigned to one of the following categories of users:

(i) Public safety (as defined in § 90.20(a) );

(ii) Power and telephone maintenance licensees (as defined in § 90.7 );

(iii) Special industrial licensees (as defined in § 90.7 );

(iv) Business licensees (as defined in § 90.35(a) );

(v) Petroleum, forest products, and manufacturers licensees (as defined in § 90.7 );

(vi) Railroad, motor carrier, and automobile emergency licensees (as defined in § 90.7 ); and

(vii) Taxicab licensees (as defined in § 90.7 ).

(2) If assigned, subsequent authorizations will only be granted to users from the same category. If unassigned, or should a channel subsequently become unassigned, it will be treated as available in the General Access Pool.

(3) Normally, each channel should be substantially loaded in accordance with the standards set out in § 90.313.

(4) The following frequencies will be authorized a maximum bandwidth of 6 kHz.

Channel	Frequency
14	470.30625
	475.99375
15	476.30625
	481.99375
16	482.30625
	487.99375
17	488.30625
	493.99375
18	494.30625
	499.99375
19	500.30625
	505.99375
20	506.30625
	511.99375

(b) [Reserved]

[43 FR 54791, Nov. 22, 1978, as amended at 44 FR 49692, Aug. 24, 1979; 51 FR 4362, Feb. 4, 1986; 60 FR 37272, July 19, 1995; 62 FR 2041, Jan. 15, 1997; 62 FR 18932, Apr. 17, 1997; 64 FR 36270, July 6, 1999]

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