Commercial Requirements for Electrical/Mechanical/Plumbing

In addition to the GENERAL PLAN CHECK REQUIREMENTS, when application is made to construct a commercial building, a complete electrical plan must be submitted before permits for such work are issued.

General Requirements

• Seven copies of plans, specifications, calculations and equipment brochures.

• Good grade reprocopy (Xerox) or standard blue/black line paper

• No red ink or pencil

• Signature of designer with license number or seal on first sheet of both sets in ink ONLY. Unlicensed designers will not be accepted.

• Minimum sheet size 18" x 24"

For Additions and Remodels:

• Clearly distinguish between new work and existing work. Indicate existing components affected by new work.

Specific Requirements:

• Schematic diagram of all wire runs including main, sub feed, branch circuits 

• Indicate with standard symbols all fixtures, junction boxes, load centers, main panels.

• Scale 1/4" - 1'-0" standard for overall plan. Use appropriate scale for details and sections.

• Indicate all materials used for wiring runs including raceways, supports, panels, service entrance, etc.

• Indicate bonding/grounding system.

• Provide load schedule; should include; disconnect/over current protection means, working voltages/amperages/wattage/horsepower/etc.

• Show compliance with current Title 24 non-residential energy standards as adopted by the California Energy Commission

Electric Requirements

Mechanical Plan Check Requirements for Commercial Structures

In addition to the GENERAL PLAN CHECK REQUIREMENTS, when application is made to construct a commercial building, a complete mechanical plan must be submitted before permits for such work are issued...

General Requirements

• Seven copies of plans, specifications, calculations and equipment brochures.

• Good grade reprocopy (Xerox) or standard blue/black line paper

• No red ink or pencil

• Signature of designer with license number or seal on first sheet of both sets in ink ONLY. Unlicensed designers will not be accepted.

• Minimum sheet size 18" x 24"

 For Additions and Remodels:

• Clearly distinguish between new work and existing work. Indicate existing components affected by new work.

Specific Requirements:

• Show compliance with current Title 24 non-residential energy standards as adopted by the California Energy Commission.

• Schematic floor plan indicating duct runs, branches, supports, and related fittings. Use standard symbols. (An isometric plan may be required on complicated systems.)

• Identify all equipment in system including air handler(s), HVAC equipment, etc. Include all make, model, size, installation details, etc. HVAC equipment must be CEC approved.

• Identify combustion air sources for fuel burning equipment.

• Dimension all runs.

• Call out materials, sizes and types.

• Demonstrate flue (venting) design details for fuel burning equipment.

• Indicate how penetrations in rated construction are protected.

• Differentiate between supply air and return air ducts.

• Provide information to local fire district on all flammable gasses and liquids handled by system.

Kitchen Hoods:

• Indicate all fuel burning equipment to be protected (include size).

• Provide plan view and elevation views for two sides not more than 90 degrees apart. (Indicate relationship to kitchen floor area).

• Indicate vertical distance between top of equipment & lip of hood.

• Indicate shaft construction, cleanout(s), blower detail and make-up air blower. (Must be tempered make-up if over 2500 cfm.).

• Call out all materials, sizes, fasteners, controls, etc.

• Provide fire suppression system details to local fire district.

• For Type I hoods provide duct sizing calculations.

Plumbing Plan Check Requirements for Commercial Structures

In addition to the GENERAL PLAN CHECK REQUIREMENTS, when application is made to construct a commercial building, a complete electrical plan must be submitted before permits for such work are issued.

General Requirements

• Seven copies of plans, specifications, calculations and equipment brochures.

• Good grade reprocopy (Xerox) or standard blue/black line paper

• No red ink or pencil

• Signature of designer with license number or seal on first sheet of both sets in ink ONLY. Unlicensed designers will not be accepted.

• Minimum sheet size 18" x 24"

For Additions and Remodels:

• Clearly distinguish between new work and existing work. Indicate existing components affected by new work.

Specific Requirements:
DWV Systems:

• Show compliance with current Title 24 non-residential energy standards adopted by the California Energy Commission.

• Isometric diagram of main run, branches, vents, fittings, and fixture location.

• Schematic floor plan indicating relationships of fixtures and locations. Use standard symbols.

• Indicate all materials used in DWV systems if less than 1/4" per foot. (Pre-approval required for slopes less than 1/4" per foot).

• Indicate fixture make, type, etc. Fixtures must be listed types approved by CEC.

• Dimension run lengths.

• Provide cleanouts per UPC

Water/Gas Systems (Piping system only):

• Schematic diagram of piping layout, isometric diagrams may be required on more complicated systems.

• Indicate demand load per fixture/appliance served.

• List fixture/appliances by make, model, etc. Provide manufacturer's data as applicable.

• Dimension run lengths.

• Indicate working pressures.

• Indicate working pressures.

• Indicate bonding system(s) used.

Plumbing Requirements

• Indicate compliance with Title 24 California Plumbing Code regarding accessible plumbing elements.