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.

You will need to file an application with the Mechanical Testing Laboratory.

Approval from LA City Mechanical Testing Laboratory cannot be obtained for products that do not have applicable testing standards.

The process time depends on the current backlog and type of application submitted. Contact the Mechanical Test Lab Engineer for more information.

A product (or equipment) is considered approved if it bears either the approval label of the City of Los Angeles Electrical Test Lab, or listing or certification label, symbol or other identifying mark of a recognized testing agency.

Approved testing and listing agencies are available from the Mechanical Test Lab page.

All testlab applications are listed on the Mechanical Test Lab page on the LADBS website.

Yes. Graywater Ready Systems are not required when the landscape area on the site does not exceed 500 square feet, or when graywater irrigation is not permitted due to geological conditions, or for additions or alterations that use the existing building drain.

Yes. However, the emergency drains shall be protected against backflow with backwater valves.

No, water from sprinkler drain shall discharge to the sewer.