(d) In Column 6 (above 25 Mc/s) the letter G means Federal Government radio stations, i.e., those belonging to and operated by the United States. The symbol NG means other than Federal Government radio stations, i.e., those whose frequencies are assigned by the Commission.

(e) Column 10 lists certain frequencies which have national or international significance and are used for specific standardized purposes. These frequencies may be made available for assignment to stations which conform to the nature of service or station listed in Column 11 opposite the assignable frequency. The assignment and use of the frequencies listed in Column 10 is limited to those stations which, by definition, are included in the services and classes of stations (Column 8 or 9) to which the frequency band (Column 7) is allocated.

(f) In Column 11 “SERVICES” are in large block print and "stations" in small print.

(g) Where, in Columns 2, 4, and 8, a band is indicated as allocated to more than one service, such services are listed in the following order:

(1) Services, the names of which are printed in all capital letters (example: FIXED); these services are called "primary" services;

(2) Services, the names of which are italicized and are printed with the first letter capitalized and all others small type (example: Radionavigation); these services are called "permitted" services;

(3) Services, the names of which are: printed as in subparagraph (2) of this paragraph, but not italicized (example: Mobile); these are called "secondary" services, which are on a noninterference basis to the primary and permitted services.

NOTE 1. Geneva Radio Regulation No. 138: Permitted and primary services have equal rights, except that, in the preparation of frequency plans, the primary service, as compared with the permitted service, shall have prior choice of frequencies.

NOTE 2. Geneva Radio Regulation No. 139: Stations of a secondary service: (a) Shall not cause harmful interference to stations of primary or permitted services to which frequencies are already assigned or to which frequencies may be assigned at a later date; (b) cannot claim protection from harmful interference from stations of a primary or permitted service to which frequencies are already assigned or may be assigned at a later date; (c) can claim protection, however, from harmful interference from stations of the same or other secondary service(s) to which frequencies may be assigned at a later date.

(h) The following symbols are used to designate footnotes in the Table of Frequency Allocations.

(1) Any footnote consisting of three digits or three digits and a one or two letter suffix, e.g., (170) or (215A), denotes a paragraph in the Geneva (1959) Radio Regulations as amended by the Space Conference (Geneva, 1963). Where such a footnote is applicable, without modification, to the national Table of Frequency Allocations, the symbol appears in the national table as well as in Column 1, 2, 3 or 4.

(2) Any footnote consisting of the letters US followed by one or more digits, e.g., US1, denotes a stipulation the application of which is a matter of agreement between the Commission and other appropriate Government agencies.

(3) Any footnote consisting of the letters NG followed by one or more digits, e.g., NG1, is a stipulation applicable to non-Government stations.

[28 F.R. 12466, Nov. 22, 1963, as amended at 30 F.R. 7156, May 28, 1965]