In the United States, the business band is the colloquial name used by radio users who utilize and scanner hobbyists who listen to the Federal Communications Commission (FCC) Industrial/Business pool frequencies.
The regulations listing frequencies in this pool are contained in Subpart C of Part 90, Title 47 of the CFR.
The pool describes a series of frequencies on the VHF and UHF two-way radio bands.
Channels are available in several frequency ranges to suit the users' requirements for propagation and protection from interference.
There are also a number of specific frequencies, in both the VHF and UHF spectrums, that are for business use; some of these have color-coded names, such as Red Dot or Blue Star.
In 2004, the FCC required all CFR 47 Part 90 VHF (150–174 MHz) and UHF (421–470 MHz) PLMR (Private Land Mobile Radio) licensees operating legacy wideband (25 kHz bandwidth) voice or data/SCADA systems to migrate to narrowband (12.5 kHz bandwidth or equivalent) systems by January 1, 2013.
[2] The Private Land Mobile Radio Service (47CFR90, or Part 90 of the FCC Rules) was established in the US in 1927[3] to permit commercial and public safety uses of two-way radio by commercial entities and non-Federal government agencies.