RF does not happen in a vacuum, legally or technically. Behind every band plan, every emission limit, and every interoperability test sits an organization that wrote the rule. Some of these bodies are governments with the power to license and fine. Others are voluntary consortia whose specifications become de facto law because the whole industry adopts them. Knowing who governs what saves time when a design has to be certified, when a test has to match a published method, or when a band suddenly becomes available or restricted.
This appendix is a map of that landscape. It names the major standards and regulatory bodies, explains what each one actually controls, and points to where current spectrum allocations live. The boundaries overlap, which is normal. A single 5G product may have to satisfy a 3GPP standard, an ETSI harmonized standard, an FCC equipment rule, and a CISPR emission limit at the same time.
The table below sorts the principal bodies by their remit. Read it as a quick orientation, then use the sections that follow for the detail that matters in practice.
Table F.1 Principal RF standards and regulatory bodies and their remit.
| Body | Type | Scope | What it governs |
|---|---|---|---|
| IEEE | Professional standards body | Global | Engineering standards, including the 802 family (Wi-Fi, Bluetooth-class links) and connector and measurement standards |
| ITU / ITU-R | United Nations agency | International (treaty) | Global spectrum allocations, the Radio Regulations, and the World Radiocommunication Conferences |
| 3GPP | Industry consortium | Global | Cellular specifications: LTE, 5G New Radio, and the path to 6G, organized in numbered Releases |
| ETSI | Regional standards body | Europe | European telecom standards and harmonized standards for CE marking; hosts much 3GPP work |
| CISPR / IEC | International standards body | Global | Electromagnetic compatibility limits: emission and immunity standards used as the basis for national EMC rules |
| FCC | Government regulator | United States (non-federal) | Commercial spectrum licensing, equipment authorization, and the rules in Title 47 (including Part 15) |
| NTIA | Government agency | United States (federal) | Federal government spectrum, including military systems; coordinates shared bands with the FCC |
IEEE. The Institute of Electrical and Electronics Engineers writes engineering standards that the industry builds to. In RF, the most visible is the 802 family, which includes 802.11 for wireless local area networks (the technology branded Wi-Fi) and 802.15 for personal-area and low-power links. IEEE also publishes the connector and measurement standards that bench work depends on, such as the precision coaxial connector standard. IEEE standards are technical, not regulatory: they tell you how to build a thing well, not whether you are allowed to sell it.
ITU and ITU-R. The International Telecommunication Union is the United Nations agency for information and communication technologies. Its radiocommunication sector, the ITU-R, maintains the Radio Regulations, the international treaty that divides the spectrum into allocations by region and service. The ITU-R does not license your transmitter, but it sets the global framework that national regulators work within, and it runs the World Radiocommunication Conferences where allocations are renegotiated. When people talk about a band being "allocated to mobile" at the international level, this is the body that did it.
3GPP. The Third Generation Partnership Project is the collaboration that writes the specifications for cellular systems, from the older generations through LTE, 5G New Radio, and the work that will become 6G. 3GPP organizes its work into Releases, each a numbered snapshot of the standard. It is not a legal authority. Its power comes from universal adoption: if you build cellular equipment, you build to 3GPP, because everyone else does and the network has to interoperate.
ETSI. The European Telecommunications Standards Institute produces standards for Europe and hosts much of the 3GPP work. Its harmonized standards are the practical route to the CE marking that lets radio equipment onto the European market, because compliance with a harmonized standard gives a presumption of conformity with the relevant directive. ETSI is where European regulatory intent turns into testable engineering requirements.
CISPR and IEC. The International Electrotechnical Commission is the global standards body for electrical and electronic technology. Its special committee on radio interference, CISPR, writes the electromagnetic compatibility standards that set emission and immunity limits. CISPR 11, CISPR 22, and CISPR 32 are the documents that decide whether a product radiates too much noise. National EMC rules around the world are built on CISPR limits, which is why an EMI pre-compliance test bench is set up to CISPR methods.
FCC. The Federal Communications Commission regulates radio, wire, satellite, and cable communications in the United States. It licenses spectrum, certifies equipment, and enforces the rules in Title 47 of the Code of Federal Regulations. Part 15 governs unlicensed devices, the category most consumer electronics fall into, and Part 97 governs amateur radio. If you sell an electronic product in the United States, FCC equipment authorization is usually the gate you pass through.
NTIA. The National Telecommunications and Information Administration manages the radio spectrum used by the United States federal government, including military and other agency systems. The split is the key point: the FCC manages commercial and non-federal spectrum, the NTIA manages federal spectrum, and the two coordinate where bands are shared. Much of the recent pressure to free up mid-band spectrum for commercial 5G has run through NTIA and FCC coordination over bands that the government historically held.
Allocations change, and stale band plans cause real mistakes. The authoritative sources, by jurisdiction:
BNC in Practice - Test to the method, not the memory
When a customer asks whether an instrument can perform a compliance measurement, the real question is always which standard and which revision. An EMI measurement to CISPR 32 has a defined detector, bandwidth, and limit line. A spurious-emission check under an FCC rule has its own definition. Match the instrument setup to the cited standard, confirm the revision, and document both. A measurement that does not name its standard cannot be defended.
A useful way to hold this in your head: the ITU-R draws the global map, national regulators like the FCC and NTIA enforce it inside their borders, industry consortia like 3GPP and IEEE define how to use the allocated spectrum well, and EMC bodies like CISPR set the noise limits that keep everyone from interfering with everyone else. ETSI sits where regulation meets engineering in Europe, turning policy into harmonized, testable standards.
No single document tells you everything. A complete picture for one product means reading across several bodies at once, and confirming that each reference is current before you rely on it.
[1] ITU Radio Regulations and ITU-R recommendations, International Telecommunication Union. Verify current edition before publication.
[2] FCC rules, Title 47 Code of Federal Regulations, including Part 2 (allocations) and Part 15 (unlicensed devices). Verify current revision before publication.
[3] NTIA Manual of Regulations and Procedures for Federal Radio Frequency Management. Verify current edition before publication.
[4] CISPR and IEC electromagnetic compatibility standards (for example CISPR 32). Verify current revision before publication.
[5] 3GPP specification Releases and ETSI harmonized standards. Verify current Release and standard numbers before publication.