Radio Regulations

Source: the Radio Regulations published by the International Telecommunication Union (ITU).

ITU-R Recommendations Incorporated by Reference

Mandatory

The ITU-R Recommendations that the Radio Regulations incorporate by reference — and so give treaty-binding force (RR Volume 4). Each links to the RR footnotes, Resolutions and provisions that pull it in.

Count Version evolution
All series BO F M P RA RS S SA SM TF
BO ITU-R BO.1293-2
Mandatory

Protection masks and associated calculation methods for interference into broadcast-satellite systems involving digital emissions

BO ITU-R BO.1443-3
Mandatory

Reference BSS earth station antenna patterns for use in interference assessment involving non-GSO satellites in frequency bands covered by RR Appendix 30

F ITU-R F.1613-0
Mandatory

Operational and deployment requirements for fixed wireless access systems in the fixed service in Region 3 to ensure the protection of systems in the Earth exploration-satellite service (active) and the space research service (active) in the band 5 250-5 350 MHz

5.447E
M ITU-R M.489-2
Mandatory

Technical characteristics of VHF radiotelephone equipment operating in the maritime mobile service in channels spaced by 25 kHz

M ITU-R M.492-6
Mandatory

Operational procedures for the use of direct-printing telegraph equipment in the maritime mobile service

M ITU-R M.541-11
Mandatory

Operational procedures for the use of digital selective-calling equipment in the maritime mobile service

M ITU-R M.585-9
Mandatory

Assignment and use of identities in the maritime mobile service

M ITU-R M.633-5
Mandatory

Transmission characteristics of a satellite emergency position-indicating radio beacon (satellite EPIRB) operating through a satellite system in the 406.0-406.1 MHz band

M ITU-R M.690-3
Mandatory

Technical characteristics of emergency position-indicating radio beacons operating on the carrier frequencies of 121.5 MHz and 243 MHz

M ITU-R M.1084-5
Mandatory

Interim solutions for improved efficiency in the use of the band 156-174 MHz by stations in the maritime mobile service

M ITU-R M.1171-1
Mandatory

Radiotelephony procedures for routine calls in the maritime mobile service

M ITU-R M.1172-0
Mandatory

Miscellaneous abbreviations and signals to be used for radiocommunications in the maritime mobile service

M ITU-R M.1173-1
Mandatory

Technical characteristics of single-sideband transmitters used in the maritime mobile service for radiotelephony in the bands between 1 606.5 kHz (1 605 kHz Region 2) and 4 000 kHz and between 4 000 kHz and 27 500 kHz

M ITU-R M.1174-4
Mandatory

Technical characteristics of equipment used for on-board vessel communications in the bands between 450 and 470 MHz

5.287 5.288
M ITU-R M.1187-1
Mandatory

A method for the calculation of the potentially affected region for a mobile-satellite service network in the 1-3 GHz range using circular orbits

M ITU-R M.1583-1
Mandatory

Interference calculations between non-geostationary mobile-satellite service or radionavigation-satellite service systems and radio astronomy telescope sites

5.372 5.443B Resolution 741 (Rev.WRC-15)
M ITU-R M.1642-2
Mandatory

Methodology for assessing the maximum aggregate equivalent power flux-density at an aeronautical radionavigation service station from all radionavigation-satellite service systems operating in the 1 164-1 215 MHz band

5.328A Resolution 609 (Rev. WRC-07)
M ITU-R M.1643-0
Mandatory

Technical and operational requirements for aircraft earth stations of aeronautical mobile-satellite service including those using fixed-satellite service network transponders in the band 14-14.5 GHz (Earth-to-space)

5.504B 5.504C 5.508A 5.509A
M ITU-R M.1652-1
Mandatory

Dynamic frequency selection in wireless access systems including radio local area networks for the purpose of protecting the radiodetermination service in the 5 GHz band

5.446A 5.447F 5.450A Resolution 229 (Rev.WRC-23)
M ITU-R M.1827-1
Mandatory

Guideline on technical and operational requirements for stations of the aeronautical mobile (R) service limited to surface application at airports in the frequency band 5 091-5 150 MHz

5.444B Resolution 748 (Rev.WRC-19)
M ITU-R M.2013-0
Mandatory

Technical characteristics of, and protection criteria for non-ICAO aeronautical radionavigation systems, operating around 1 GHz

5.327A Resolution 417 (Rev.WRC-15)
P ITU-R P.525-4
Mandatory

Calculation of free-space attenuation

5.444B Resolution 748 (Rev.WRC-19)
P ITU-R P.526-15
Mandatory

Propagation by diffraction

5.444B Resolution 748 (Rev.WRC-19)
P ITU-R P.838-3
Mandatory

Specific attenuation model for rain for use in prediction methods

RA ITU-R RA.769-2
Mandatory

Protection criteria used for radio astronomical measurements

5.372 5.511G 5.511H 5.531C 5.531E 5.510A Resolution 678 (WRC-23)
RA ITU-R RA.1513-2
Mandatory

Levels of data loss to radio astronomy observations and percentage-of-time criteria resulting from degradation by interference for frequency bands allocated to the radio astronomy service on a primary basis

5.372 5.511G 5.511H 5.531C 5.531E 5.510A Resolution 678 (WRC-23)
RA ITU-R RA.1631-0
Mandatory

Reference radio astronomy antenna pattern to be used for compatibility analyses between non-GSO systems and radio astronomy service stations based on the epfd concept

5.208B 5.372 5.443B 5.551H Resolution 739 (Rev.WRC-19) Resolution 741 (Rev.WRC-15)
RS ITU-R RS.1260-2
Mandatory

Feasibility of sharing between active spaceborne sensors and other services in the range 420-470 MHz

5.279A
RS ITU-R RS.2065-0
Mandatory

Protection of space research service (SRS) space-to-Earth links in the 8 400-8 450 MHz and 8 450-8 500 MHz bands from unwanted emissions of synthetic aperture radars operating in the Earth exploration-satellite service (active) around 9 600 MHz

5.474C
RS ITU-R RS.2066-0
Mandatory

Protection of the radio astronomy service in the frequency band 10.6-10.7 GHz from unwanted emissions of synthetic aperture radars operating in the Earth exploration-satellite service (active) around 9 600 MHz

5.474B
S ITU-R S.672-4
Mandatory

Satellite antenna radiation pattern for use as a design objective in the fixed-satellite service employing geostationary satellites

S ITU-R S.1256-0
Mandatory

Methodology for determining the maximum aggregate power flux-density at the geostationary-satellite orbit in the band 6 700-7 075 MHz from feeder links of non-geostationary satellite systems in the mobile-satellite service in the space-to-Earth direction

S ITU-R S.1340-0
Mandatory

Sharing between feeder links for the mobile-satellite service and the aeronautical radionavigation service in the Earth-to-space direction in the band 15.4-15.7 GHz

5.511C
S ITU-R S.1428-1
Mandatory

Reference FSS earth-station radiation patterns for use in interference assessment involving non-GSO satellites in frequency bands between 10.7 GHz and 30 GHz

S ITU-R S.1586-1
Mandatory

Calculation of unwanted emission levels produced by a non-geostationary fixed-satellite service system at radio astronomy sites

5.551H
S ITU-R S.2157-0
Mandatory

Procedures for the evaluation of interference from any non-geostationary-satellite system into a global set of the generic geostationary-satellite reference links in the frequency bands 37.5-39.5 GHz (space-to-Earth), 39.5-42.5 GHz (space-to-Earth), 47.2-50.2 GHz (Earth-to-space) and 50.4-51.4 GHz (Earth-to-space)

5.550C Resolution 770 (Rev.WRC-23)
SA ITU-R SA.1154-0
Mandatory

Provisions to protect the space research (SR), space operations (SO) and Earth-exploration satellite services (EES) and to facilitate sharing with the mobile service in the 2 025-2 110 MHz and 2 200-2 290 MHz bands

5.391
SM ITU-R SM.1138-3
Mandatory

Determination of necessary bandwidths including examples for their calculation and associated examples for the designation of emissions

TF ITU-R TF.460-6
Mandatory

Standard-frequency and time-signal emissions

Resolution 655 (Rev.WRC-23)

Source: ITU Radio Regulations, editions of 2008, 2012, 2016, 2020 and 2024. The English, French and Spanish texts are each taken from the official edition in that language, not translated from one another. Sources and citation.