The 10-meter band was allocated on a worldwide basis by the International Radiotelegraph Conference in Washington, D.C., on October 4, 1927.Its frequency allocation was then 28000-30000 kc.
A 300 kHz segment, from 29.700 MHz to 30.000 MHz, was removed from the amateur radio allocation by the 1947 International Radio Conference of Atlantic City.
In the late 1970s, the impending ban by the FCC of the sale of older 23-channel CB equipment that did not meet more stringent restrictions on newer, 40-channel units, meant that a surplus of 23-channel CB gear was on the market. This was a windfall for amateur radio enthusiasts, allowing access to fairly inexpensive radios which could easily be modified for use in the 10-meter band.
With the elimination of Morse code testing requirements for U.S. amateurs in February
2007, Technician-class licensees who have not passed a code test may operate
with up to 200 watts PEP using CW and SSB modes in a portion of
the 10-meter band.