RULES FOR ELECTRIC SIGNS
Electric signs in the U.S. must meet two standards:
- UL 48: Ensures safe design and fabrication.
- NEC (NFPA 70): Ensures safe installation and wiring.
QUESTIONS?
Contact Kenny Peskin Director of Industry Programs
NATIONAL ELECTRIC CODE
What is the NEC®?
Published by the National Fire Protection Association (NFPA), the NEC sets safety standards for electrical installations. Though not federal law, it’s widely adopted by states and municipalities—sometimes with local modifications.
Article 600: Electric Signs & Outline Lighting
This section covers standards specific to electric signs. ISA has been a voting member of the relevant NEC Code-Making Panel (currently CMP 18) since the 1978 development cycle, helping shape the rules that affect our industry.
Which NEC Version Applies to You?
Because the NEC must be adopted by state legislatures or local councils, the version of the NEC in force in each jurisdiction may differ. As of July 2025, the current versions of the NEC are:

Interested in Making a Positive Impact?
ISA is looking for new representatives for 2026 ISA Electrical Codes & Standards Subcommittee. Email kenneth.peskin@signs.org for more info.