FAA federal preemption blocks LA County from regulating helicopter altitude or routes. Title 12.08.330 still bars willful operation creating disturbing ground noise. LASD Air Support, news, traffic, and hospital helipads dominate countywide rotorcraft activity.
Helicopter operations in LA County skies are governed almost entirely by FAA regulations under 14 CFR Parts 91 and 136, which preempt local altitude, route, and overflight rules. LA County Code Title 12.08.330 prohibits any person from willfully operating an aircraft in a manner causing unreasonable noise to persons on the ground, but this rarely overcomes federal preemption. The Los Angeles Helicopter Noise Coalition channels resident complaints to the FAA's Hollywood-Burbank ATC and a dedicated noise officer. Sheriff's Air Support Division, ENG news ships, medevac (LA County Fire Air Operations), and tour operators generate most complaints. Residents file at heli-noise.com or 1-800-WX-BRIEF.
Local enforcement is limited to ground-based noise from idling rotors at private helipads. The FAA handles federal violations with civil penalties up to $34,066 under 49 USC §46301; complaints typically yield voluntary route adjustments.
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