What must you do if your station fails to meet the FCC RF exposure exemption criteria?

The FCC recently updated its rules, replacing old power-based exemptions with a new formula-based exemption criteria. If your station does not meet these specific exemption criteria, it simply means you are legally required to perform a routine RF exposure evaluation. It does not mean your station is unsafe or that you are forbidden from transmitting. To perform this mandatory evaluation, you should use the guidelines and formulas provided in FCC OET Bulletin 65, or utilize the ARRL's online RF exposure calculator which is based on that same bulletin. Once you do the math and confirm your signals fall below the Maximum Permissible Exposure (MPE) limits, you are fully compliant. You do not need to contact the FCC for special permission, nor do you apply guidelines from unrelated organizations like the World Meteorological Organization. Using a band-pass filter prevents harmonic interference but does nothing to change your primary RF exposure footprint.