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.

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Complete the "Application for Renewal and Clerical Modification of General Approval form (PC-STR.App19)". Refer to "Instructions for Completing Application Forms for Research Reports (LARR) and Research Report Fees" for instructions.

The fee is listed on the application based on the type of product approval previously obtained. The renewal application extends the expiration date of the approval form the previous reevaluation due date listed on the current approval.


 

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Projects that have paid a plan check fee and had their plans accepted by LADBS prior to the effective date of the ADU Ordinance (December 19, 2019) are provided a vested right to proceed with its development in compliance with the development rules and regulations in force on the date that the plan check fee was paid. Applicants that wish for their projects to take advantage of new provisions in the ADU Ordinance (and state law) will need to file a supplemental permit application, which will void the vesting rights under the prior development rules and subject the project to the new ADU Ordinance and any other new regulations.

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LADBS Custodian of Records
201 N. Figueroa St., Suite 1325
Los Angeles, CA 90012
(213) 482-6770
ladbs.custodianofrecords@lacity.org

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Please visit the Contractors State License Board for information regarding hiring a contractor and to verify if a contractor is licensed and insured: http://cslb.ca.gov.

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Please visit the Contractors State License Board for information regarding hiring a contractor and to verify if a contractor is licensed and insured: http://cslb.ca.gov.

 

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Please visit the California Architects Board for information regarding licensed architects: http://cab.ca.gov

 

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Please visit the California Architects Board for information regarding licensed architects: http://cab.ca.gov

 

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Please visit the State of California’s Board for Professional Engineers, Land Surveyors, and Geologists for information regarding licensed engineers: http://bpelsg.ca.gov. 

 

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Please visit the State of California’s Board for Professional Engineers, Land Surveyors, and Geologists for information regarding licensed engineers: http://bpelsg.ca.gov. 

 

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