Certify your crew for Title 24 acceptance testing.
NLCAA trains, certifies, and oversees Acceptance Test Technicians and Employers — so your team stays compliant and your projects pass inspection the first time.
Trusted by 1,200+ certified technicians across California
Approved & trusted by industry leaders
The path to certification
How certification works
Apply
Submit your ATT or ATE application online in minutes — no paperwork to mail.
Train
Complete NLCAA’s CEC-approved coursework, online or in a live class.
Test
Pass the acceptance test to prove field competency on real lighting controls.
Get listed
Earn your certification and appear in the public, CEC-recognized directory.
Choose your certification
Certification paths & pricing
Acceptance Test Technician
For installation technicians who perform nonresidential lighting-controls acceptance testing.
- Full ATT certification
- Hands-on acceptance test
- Listed in public directory
Acceptance Test Employer
Required for every employer of ATTs — even self-employed technicians.
2025 Recertification
Update to the 2025 Energy Code requirements, in effect since January 1, 2026.
New to Title 24? Learn how acceptance-testing certification works
Built for employers & contractors
Why contractors certify with NLCAA
As a California Energy Commission–approved ATTCP, NLCAA is authorized to train, certify, and oversee Acceptance Test Technicians and Employers across the state.
Stay compliant on every job
Keep your crew certified so nonresidential lighting-controls work meets Title 24 on every project.
Pass inspection the first time
Certified acceptance testing means fewer failed inspections and no costly rework.
Ready for the 2025 Energy Code
The 2025 Energy Code took effect January 1, 2026 — make sure your team is certified to the current requirements.
Get found in the directory
Certified employers and technicians appear in the CEC-recognized public directory.
Enroll now
Upcoming classes
No classes are scheduled right now — new dates are added regularly.
Browse all coursesQuestions, answered
Frequently asked questions
Any installation technician who performs nonresidential lighting-controls acceptance testing under Title 24 must be a certified ATT. Most contractors certify several field techs.
Every ATT must be employed by a certified ATE to participate in the program — even self-employed technicians. The ATE oversees testing quality and compliance for the team.
Application is quick. Coursework is completed online or in a live class, followed by the acceptance test. Most technicians finish within a few weeks.
The 2025 Energy Code took effect January 1, 2026. The 1.5-hour recertification course brings existing ATT/ATEs up to the current requirements and counts toward CEUs.
Both. Many courses run fully online, and NLCAA also holds live classes and field workshops across California — see the calendar for dates and locations.
Ready to certify your team?
Get your crew Title 24–ready before the 2025 Energy Code deadline.