Carson, CA Noise from Specific Sources: HVAC & Mechanical Noise (2026)
Key Facts
- Applies to
- residential condominium projects, common walls
- Equipment covered
- motors, compressors, pumps, compactors
- Method required
- inertia blocks, bases, vibration isolators
- Approval authority
- City Building Official
Summary
Carson requires shock-mounting of motors, compressors and pumps in residential condominium buildings to block structure-borne mechanical noise between units.
All permanent mechanical equipment such as motors, compressors, pumps and compactors which, because of their rotation, reciprocation, expansion and/or contraction, turbulence, oscillation, pulsation, impaction, or detonation, are determined by the Building Official to be a source of structural vibration or structure-borne noise shall be shock-mounted with inertia blocks or bases and/or vibration isolators in a manner approved by the Building Official. Domestic appliances which are cabinet-installed or built into the individual units, such as clothes washers and dryers, or other appliances which are determined by the Building Official to be a source of structural vibration or structure-borne noise, shall be isolated from cabinets and the floor or ceiling by resilient gaskets and vibration mounts approved by the Building Official. The cabinets in which they are installed should be offset from the back wall with strip gasketing of felt, cork or similar material approved by the Building Official. Where such appliances utilize water, flexible connectors shall be installed on all water lines. If provision is made within the units for the installation of nonpermanent appliances such as clothes washers and dryers, then permanent rubber mounting bases and surface plates shall be installed in a manner approved by the Building Official.
Full Breakdown
Under Carson Municipal Code § 9128.15, residential condominium projects with common walls, floors or ceilings must shock-mount permanent mechanical equipment such as motors, compressors, pumps and compactors that the Building Official determines is a source of structural vibration or structure-borne noise, using inertia blocks, bases or vibration isolators approved by the Building Official. Cabinet-installed appliances like washers and dryers must similarly be isolated with resilient gaskets and vibration mounts, offset from the back wall with gasketing. This rule is specific to condominium developments in Carson, California (Los Angeles County) reviewed under the residential condominium standards: it does not extend to single-family home HVAC units generally.
Violations & Fines
A condominium project that installs mechanical equipment without Building Official-approved shock mounting can be denied final building approval or required to retrofit isolation measures before occupancy sign-off.
Frequently Asked Questions
Does Carson require shock-mounting for all home air conditioning units?
Who decides if condo mechanical equipment needs vibration isolation in Carson?
Sources & Official References
Other rules in Carson
California rules heatmap·Compare Carson to another location·View the California noise from specific sources overview
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