Step-by-Step Guide to Passing a Title 24 Lighting Inspection…the First Time

Your Step-by-Step Guide to Passing a Title 24 Lighting Inspection the First Time Avoid Delays and Rework with a Proven Compliance Strategy

If you’re an electrical or general contractor in California, you already know that a Title 24 lighting inspection can make or break your project’s final sign-off. Failing an inspection doesn’t just cause frustration — it can lead to costly rework, delays in occupancy, and even penalties.
The good news? Passing on the first attempt is absolutely achievable. With proper preparation, documentation, and coordination, you can ensure your lighting system meets every Title 24, Part 6 requirement confidently.
Here’s a practical, contractor-focused guide to help you pass your Title 24 lighting inspection the first time — and keep your projects on schedule.

Step 1: Understand What Inspectors Look For
Before inspection day, it’s critical to know what Certified Lighting Acceptance Test Technicians (ATTs) are required to verify. Their primary focus includes:
* Lighting Power Density (LPD): Confirming that installed lighting wattage per square foot meets code limits.
* Lighting Controls: Ensuring that occupancy sensors, dimmers, and daylight-responsive controls function correctly.
* Documentation: Reviewing compliance forms such as NRCC (Nonresidential Certificates of Compliance) and NRCI (Installation Certificates).
A good rule of thumb — if it’s required on paper, it must be installed, operational, and documented in the field.

Step 2: Prepare Documentation Early
Documentation is the backbone of Title 24 compliance. All forms, calculations, and specifications must match what’s actually installed.
Ensure the following forms are completed and accessible before the inspection:
* NRCC-LTI-E: Design compliance form showing lighting and control compliance.
* NRCI-LTI-E: Installation certificate confirming equipment matches approved plans.
* NRCA-LTI-E: Acceptance form verifying testing and commissioning.
Double-check that any control systems or lighting equipment listed in your submittals are exactly what was installed — even small mismatches can trigger re-inspection.

Step 3: Test Your Lighting Controls Before Inspection
Contractors often fail Title 24 inspections due to malfunctioning or incorrectly programmed lighting controls. Conduct your own pre-inspection functional test to verify that:
* Occupancy sensors turn lights off within 20 minutes of vacancy.
* Dimming systems respond properly to daylight changes.
* Manual-on or partial-on controls function as designed.
* Timeclock schedules are correctly programmed.
These checks are simple but essential. When you confirm all control systems operate correctly, you eliminate one of the top causes of inspection failure.

Step 4: Coordinate with a Certified ATT Early
Certified Acceptance Test Technicians are licensed professionals who verify that your lighting system complies with Title 24 performance requirements. Involving them early in the project saves significant time later.
Here’s why:
* They can review your plans before installation to catch potential code conflicts.
* They help ensure testing procedures align with the 2025 standards.
* They simplify the final inspection by confirming compliance documentation as you go.
Choosing an experienced ATT partner also ensures all test data and signatures meet the latest California Energy Commission (CEC) standards.

Step 5: Conduct a Final Walkthrough
Before calling for inspection, perform a detailed walkthrough with your installation team. Verify fixture labels, wattages, sensor coverage zones, and any daylighting elements.
It’s also smart to simulate various occupancy and lighting scenarios — such as dimming levels and occupancy sensor triggers — to confirm consistent performance across zones.
A proactive internal walkthrough demonstrates professionalism and saves time if the inspector spots a concern.

Step 6: Address Common Failure Points
From our experience reviewing hundreds of Title 24 lighting inspections, the most frequent causes of failure include:
* Incorrectly placed sensors (too far from doorways or work areas)
* Missing or incomplete compliance documentation
* Control systems left in factory default mode
* Fixtures or wattages that differ from design documents
Identifying and correcting these issues before your inspection is the fastest way to achieve first-time approval.

Step 7: Keep Records for Future Projects
Once your inspection passes, store all documentation — including test reports, compliance certificates, and control programming notes. These records make future inspections faster, simpler, and less stressful.
Over time, you’ll build a library of “proven” compliance templates that help standardize processes across all your projects.

Final Thoughts: Pass the First Time, Every Time
Passing a Title 24 lighting inspection on the first attempt isn’t luck — it’s preparation, attention to detail, and collaboration with the right professionals. By organizing your documentation, testing systems early, and working alongside a certified ATT, you’ll set your project up for a smooth, efficient sign-off.

When your next project is ready for inspection, trust the experts who specialize in Title 24 lighting compliance. Call 1-833-357-1600 to schedule your inspection and get guidance from California’s most reliable lighting compliance team.