California Title 24 JA8 Lamp Certification Requirements

To be legally installed in a California home built or renovated under Title 24, a lamp has to meet the JA8 certification requirements: it must pass a defined battery of efficiency, color, dimming, flicker, noise, and lifespan tests at an accredited laboratory, be registered in the California Energy Commission’s appliance database, and carry the correct JA8 marking on the lamp itself. Under the 2025 Energy Code, that marking reads “JA8-2025,” and any residential project with a permit application dated January 1, 2026, or later is on the 2025 rules.¹

Projects already permitted under the 2022 Energy Code stay on those rules, and products certified under the 2016, 2019, or 2022 code cycles remain acceptable for compliance with the 2025 code, so manufacturers do not need to re-certify existing lines solely because of the transition.² New certifications filed after January 1, 2026, use the JA8-2025 designation.

Which Lamps Have to Be JA8 Certified

Section 150.0(k) requires every permanently installed luminaire in a residential building to qualify as high luminous efficacy, and JA8 certification is one path to that classification. In practice the rule reaches screw-base LED lamps, integrated LED luminaires, and recessed downlights most heavily, since those dominate new residential construction.³ Ceiling fan light kits, small-diameter directional lamps, and other separable light sources placed inside enclosed or recessed luminaires are covered as well.

What’s Exempt

Section 150.0(k) leaves several categories out of JA8:

Outdoor LED luminaires and light sources.⁴
Lighting inside drawers, cabinetry, and linen closets, provided it reaches at least 45 lumens per watt.⁴
Lights integrated into exhaust fans, kitchen range hoods, bath vanity mirrors, and garage door openers.
Night lights, step lights, and path lights under 5 watts.

Performance Thresholds a Lamp Must Meet

JA8 is essentially a pass-or-fail scorecard measured at an accredited lab. For the 2025 code the thresholds are as follows.⁵

Efficiency and Power

Luminous efficacy of at least 45 lumens per watt at full output, or the applicable federal appliance efficiency standard, whichever is higher.
Power factor of 0.90 or greater at full output.
Start time to full brightness within 0.5 seconds of switch-on.

Color Quality

Color Rendering Index of 90 or higher for most products. Lamps regulated as T20 appliances follow their own CRI threshold instead.
R9 (red rendering) of 50 or higher, again with T20 lamps excepted.
Correlated Color Temperature of 4,000 Kelvin or less, keeping the light in the warm-to-neutral white range.

Dimming, Flicker, and Noise

A certified lamp has to dim down to 10 percent of full output. LED lamps built for forward phase-cut dimmers also have to meet NEMA SSL 7A for dimmer compatibility.⁵ Flicker must stay below 30 percent amplitude modulation at frequencies under 200 Hz, tested at both full output and 20 percent output. Audible noise cannot exceed 24 dBA measured one meter from the lamp. The lamp is checked at full output, with separate confirmation that it still meets the flicker and noise limits while dimmed.

Lifespan

Rated life must be at least 15,000 hours, demonstrated through lumen maintenance testing. At three to four hours of daily use, that’s roughly ten years before the lamp falls below its rated output.

Laboratory Testing

All performance data has to come from a laboratory accredited under ISO/IEC 17025, either through NVLAP or an equivalent body operating under ISO/IEC 17011.⁶ The lab measures every metric above and produces a report that becomes the record of compliance. Lumen maintenance testing alone can run for weeks of continuous monitoring, so that lead time needs to be built into any product launch schedule. The manufacturer then fills in the California Energy Commission’s data reporting forms with testing dates, the lab’s accreditation number, and the product’s model identifiers. Retain the lab report; it’s the document the state will ask for in any audit or enforcement action.

Registration in MAEDbS

After testing, the validated results go into the Modernized Appliance Efficiency Database System (MAEDbS), the California Energy Commission’s clearinghouse for regulated appliances, including JA8 lamps.³ A product not listed in MAEDbS cannot legally be sold or installed for residential use in California.

Registration starts with a manufacturer account on the MAEDbS portal, then uploading the lab reports and compliance forms. Processing typically takes several business days. Once a product is approved, anyone can look it up on the Commission’s public appliance search page.⁷ Contractors and inspectors use that database during plan checks and field inspections, and an unlisted model will stall a project.

Marking the Lamp

The certified lamp itself has to be marked so inspectors can verify compliance on sight. Under the 2025 code, that marking is “JA8-2025” on the lamp body or base.² Lamps intended for enclosed luminaires or recessed fixtures (other than standard ceiling-recessed downlights) must instead carry “JA8-2025-E,” which shows the product has passed the elevated temperature life test.³

That elevated temperature test confirms the lamp holds its performance in the hotter environment inside an enclosed or recessed housing. Without the “-E” suffix, a lamp cannot go into those fixtures no matter how well it scored on every other metric. Markings have to be legible to the naked eye, and the product packaging must display the same designation so contractors and inspectors can confirm compliance before the lamp is unboxed.

Verification on the Job Site

Buying certified product isn’t the end of it. The installer has to sign a Certificate of Installation, the CF2R-LTG form, attesting that every permanently installed luminaire meets the applicable JA8 and controls requirements, including vacancy sensors and dimmers where those apply.³ The certificate is submitted to the local code enforcement agency. Building officials then verify compliance by reviewing plans, inspecting fixtures for the JA8 marking, and cross-checking model numbers against MAEDbS. Residential lighting rules under the Energy Code are entirely mandatory, with no allowance for trading them against other building features, so a lighting failure can hold up a certificate of occupancy.

Penalties

Selling, importing, distributing, or installing a non-compliant lighting product in California can bring administrative civil penalties of up to $2,500 per violation for each unit involved.⁸ That exposure runs to manufacturers, retailers, contractors, importers, and distributors alike. The Commission’s Executive Director can issue a Notice of Violation, and unresolved matters move to a formal adjudicative proceeding where the per-unit fines are imposed. For any operation shipping in volume, the per-unit math scales fast.

1
California Energy Commission. 2025 Building Energy Efficiency Standards
2
California Energy Commission. 2025 Energy Code Blueprint
3
California Energy Commission. 2022 Single Family Residential Compliance Manual
4
California Energy Commission. 2025 Single Family Residential Compliance Manual
5
California Energy Commission. 2025 Reference Appendices
6
California Energy Commission. 2019 Reference Joint Appendix 8 Revised Express Terms
7
California Energy Commission. MAEDbS Quick Search
8
Legal Information Institute. California Code of Regulations Title 20 Section 1697 – Compliance, Enforcement, and Administrative Civil Penalties