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Guides & resources
Plain-English guides to California's Title 24 lighting-controls acceptance testing — what it is, who needs to be certified, and how to get your crew ATT/ATE certified with NLCAA.
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Title 24
What is Title 24 acceptance testing (and why it's required)
What acceptance testing is, why Title 24 requires it, who performs it, and what gets tested in the field.
Read guide Certification
ATT vs ATE: which certification do you need?
The difference between the technician and employer credentials — and why self-employed testers need both.
Read guide How-to
How to prepare for your Title 24 lighting-controls inspection
A practical checklist to get your lighting-controls acceptance testing done and documented before inspection.
Read guide Reference
Lighting Controls Glossary
Plain-English definitions for the types, terms, and methods you'll meet on the job.
Read guideNew guides are added regularly — check back or suggest a topic.
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