Certified Senior Lighting Technician™ (CSLT™)

A self-paced certification designed for experienced lighting technicians

90 days to complete your exam after enrollment

Why CSLT™?

Prerequisite

The Certified Apprentice Lighting Technician (CALT) certification must be obtained before earning the CSLT™ designation.

What’s Included When You Enroll

• Electronic CSLT training manual: Illuminations
• Access to the computer-based CSLT exam
• Three-year certification upon passing
• Immediate exam scoring upon completion

Important: Candidates must complete the exam within 90 days of enrollment.

Exam Content Areas

• Lighting Fundamentals
• Planned Lighting Maintenance
• Luminaires
• Emergency Lighting
• Energy Management & Lighting Controls
• Safety and Electrical Code
• Troubleshooting
• Exam Preparation Strategies

Study Format

• Self-study is the primary format
• Some companies offer group sessions with lectures and discussion
• Hybrid study + group review options may be available
• Others study independently

Recommended: Check with your employer to see if training support is offered.

Exam Details

• Format: Online, timed
• Length: 60 minutes
• Passing Score: 70%
• Results: Provided immediately
• Certificate Issued: Within two weeks of passing
• Retake Fee: $50 (if needed)

Enrollment & Cost

Each technician must register individually and create an account at NALMCO.org.

After registration, exam information and the training manual are emailed directly to the technician. Within 24–48 business hours, candidates will receive their NALMCO Identifier and secure exam URL.

Reminder: The exam must be completed within 90 days.

Recertification (Every 3 Years)

• Renewal fee: $150
• Continuing Education: 9 CEUs required
• CEUs tracked via the NALMCO CEU Tracker

Renewal notices are sent by email and USPS. Invoices are issued in September of the expiration year.

Keeping your contact information up to date is critical to avoid missing renewal notices.

Additional Resources

NALMCO provides a public search tool to look up current CSLT™ designees.

Ready to Advance Your Career?

Enroll today and earn your CSLT™ certification.