Chapter 12.04 — DEFINITIONS
National City Municipal Code · 2026-09 edition · updated 2026-10-02 · National City
12.04.020 - Terminology.¶
12.04.040 - A-weighted sound level.¶
12.04.060 - Ambient noise level.¶
12.04.080 - Code enforcement officer.¶
12.04.100 - Construction.¶
12.04.120 - Continuous sound.¶
12.04.140 - Cumulative period.¶
12.04.160 - Day/night average sound level (Ldn).¶
12.04.180 - Decibel.¶
12.04.200 - Demolition.¶
12.04.220 - Eqiuivalent sound level (Leq).¶
12.04.240 - Emergency work.¶
12.04.260 - Environmental Noise.¶
12.04.280 - Fixed Noise Source.¶
12.04.300 - Impulsive sound.¶
12.04.320 - Intermittent sound.¶
12.04.340 - Intrusive noise.¶
12.04.360 - Licensed.¶
12.04.370 - Loudspeaker.¶
12.04.380 - Message.¶
12.04.400 - Mobile noise source.¶
12.04.420 - Motor vehicle.¶
12.04.440 - Motorboat.¶
12.04.460 - Muffler or sound dissipative device.¶
12.04.480 - Noise disturbance.¶
12.04.500 - Noise sensitive zone.¶
12.04.520 - Powered model vehicle.¶
12.04.540 - Public right-of-way.¶
12.04.560 - Public space.¶
12.04.580 - Pure tone.¶
12.04.600 - Real property boundary or real property line.¶
12.04.620 - Sound amplifying equipment.¶
12.04.640 - Sound level meter.¶
12.04.660 - Sound Truck.¶
12.04.680 - Vibration perception threshold.¶
12.04.700 - Weekday.¶
Get a plain-English answer with a citation back to this text.
Ask AI about this code