What is FCC Part 15?
Part 15 is a federal regulation that sets exact limitations on the amount of electromagnetic interference (EMI) allowable from digital computing and other electronic devices as diverse as wristwatches and musical instruments, typewriters and telephones. It was promulgated by the Federal Communications Commission under its authority to regulate the airwaves, especially to limit interference with broadcasting. All electronic devices (unintentional radiators) that contain clocks/oscillators which operate at a frequency above 9kHz must be tested under FCC part 15 Subpart B, radio frequency rules & regulations. The FCC has broken down Part 15 into two categories, Class A (commercial) and Class B (residential). The FCC’s penalties for non-compliant products include halting all distribution, levy of fines and publication of public notices.
