Building Research Section (BRS)
The BRS 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.
Additional Information
Approved materials are published as Los Angeles Research Reports (LARR).
The Building Research Section is located at our Metro location (201 N Figueroa St, Rm 880, Los Angeles, CA 90012)
LA Research Reports (LARR)
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.
Approved materials are published as Los Angeles Research Reports (LARR).
Additional Resources
- FAQ
- Applications
- Publications
FAQ Search Results
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Building Information Online on the LADBS.org homepage or Permit & Inspection Report can provide permit information for a specific property.
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Inspectors can extend a permit providing it is not an Express Permit.
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The product manufacturer needs to file a test lab application and submit the required testing reports. Please visit the Mechanical Test Lab page for applications.
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The application form can be found on the website here or on our "Mechanical Test Lab (MTL)" page.
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You will need to file an application with the Mechanical Testing Laboratory. A complete application package and information on how to submit the application and the required product information is available on our Mechanical Test Lab section.
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Approval from LA City Mechanical Testing Laboratory cannot be obtained for products that do not have applicable testing standards.
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To obtain copies of plans, we would first have to make sure there are plans on file. Plans are not maintained for every property.
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Contact the designated plan checker on your project to make an appointment for verification of corrections. Contact information is provided on the correction sheet. Approval for Green Building requirements will be provided after verification of all corrections is completed.
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Complete an Application for Renewal and Clerical Modification of General Approval as directed in the instructions available at LADBS.org. 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 from the previous re-evaluation due date listed on the current approval.
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Online at our website or call 311.
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