Los Angeles County Unincorporated, California · General provision

22.22.010.B.4

From the ordinance

The Aircraft and Heavy Industrial Zone (Zone M-2.5) is to be used for the operation of large airports, aircraft manufacturing plants, aircraft modification, overhaul, repair plants, and aircraft power-plant testing stations (hereinafter collectively referred to as "zone aircraft uses"), as well as other heavy industrial uses which cause loud noises, heavy vibrations, or other similar conditions.
22.22.010.B.4