Which organization has authority over interstate and international commerce in…

CONCEPT: Telecommunications activity sits under two different kinds of bodies: STANDARDS ORGANIZATIONS publish voluntary technical specifications so equipment from different vendors interoperates, while REGULATORY AUTHORITIES are government agencies with legal power to license spectrum, set rules, and enforce compliance within a jurisdiction. Only a regulatory authority — never a standards body — holds legal authority over commerce.

APPLICATION: In the U.S.A., the Federal Communications Commission (FCC) is the federal regulatory agency created by the Communications Act of 1934 (codified at 47 U.S.C. §151). It has the legal authority to regulate interstate and international communications — by radio, television, wire, satellite, and cable — that originate or terminate in the U.S.A., including licensing broadcasters, allocating spectrum, and overseeing communications commerce.

CONTRAST — why the other bodies do not qualify:

• ITU-T develops international technical recommendations for telecommunications equipment and networks under the ITU (a UN agency) — a standards body, not a government regulator with legal authority over commerce.

• IEEE publishes voluntary engineering standards (e.g., the 802 family) for electronics and computing — a professional standards body, not a regulatory authority.

• ISOC promotes internet policy, standards development, and public education — an advocacy and standards non-profit, not a government regulator.

CROSS-CHECK: This is confirmed by the U.S. Code (47 U.S.C. §151) and the Federal Register's FCC agency page, both of which state the FCC's mandate covers exactly this interstate/international commerce authority — distinguishing it from the purely technical standards bodies above.