Product Approval (Test Lab)

LADBS approves alternate building materials or products that are at least equivalent to the materials prescribed in the code in terms of quality, effective time period of fire resistance, strength, effectiveness, durability and safety.

LA Research Reports (LARR)
Building Research Section (BRS)
Mechanical Test Lab (MTL)
Electrical Test Lab (ETL)

About Test Lab

Approved materials are published as Los Angeles Research Reports (LARR).

For licensing of product approval test labs, refer to the Materials Control section in the Inspection Bureau.

Additional Resources

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A plumbing permit is required for the installation of any gas piping, except piping less than 6 feet in length between an existing gas outlet and a gas appliance in the same room.

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When clearance for the plumbing is required.

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A reroof certificate is required for existing building in which the roof is replaced or repaired.

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When all rough sheathing is in place and nailed.

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When all framing is in place and electrical and plumbing installed.

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If the project has gas and the valuation is over $10,000.00.

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Smoke detectors are required in all residential buildings

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When required by Department of Public Works Sanitation. Please contact the Department of Public Works for more information. 

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When required by the provisions of section 1710.2 or 1710.3 of the LAMC.

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When all HVAC, electrical, and fire sprinkler are installed in the ceiling, but before covering.

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