The Malaysian Communications and Multimedia Commission (MCMC) has issued a notice cancelling the class assignment for Ultra-Wideband (UWB) communication devices operating in the 3300–3400 MHz frequency band, following an earlier cancellation for the 3400–3700 MHz band. Effective April 1, 2026, UWB devices will no longer be permitted to operate in the 3300–3400 MHz band.