You're right to be skeptical. Your co-worker's statement that industry doesn't have to follow the NEC is, generally speaking, incorrect and potentially dangerous. Here's a breakdown of why

Why the NEC Generally Does Apply to Industry:
Legal Adoption

The NEC (National Electrical Code) is not law in itself. It becomes law when a state, county, or city adopts it as part of its building codes and regulations. Most jurisdictions in the US do adopt the NEC, often with local amendments. So, the first and foremost factor is where you are. Knowing the specific governing body (city, county, or state) and checking their official website for code adoption is crucial.

OSHA Regulations

The Occupational Safety and Health Administration (OSHA) requires adherence to electrical safety standards. While OSHA doesn't directly mandate the NEC in its entirety, its regulations are heavily based on, and often directly reference, the NEC. Failing to follow the NEC puts companies at high risk of OSHA violations and significant fines. OSHA often cites the NEC as a "recognized industry practice," meaning that deviating from it significantly increases the likelihood of being found in violation.

Insurance Requirements

Insurance companies often require compliance with the NEC as a condition of coverage. If an electrical fire or accident occurs due to substandard electrical work, the insurance company may deny the claim if it's determined that the NEC was not followed.

Liability

Companies have a legal and ethical responsibility to provide a safe working environment. Neglecting to follow the NEC can open a company up to significant liability in the event of an electrical accident causing injury or death.

Best Practice

Even if not strictly legally mandated (and it almost always is), following the NEC is considered the best practice for ensuring electrical safety and reliability. It represents the consensus of experts on how to install and maintain electrical systems to minimize risks.

Possible Exceptions/Nuances (and why they're often not relevant to your situation)



Specific Equipment Standards

For very specific types of equipment (like specialized medical equipment or certain types of industrial machinery), other standards might take precedence over parts of the NEC. These standards are often developed by organizations like UL (Underwriters Laboratories), ANSI (American National Standards Institute), or IEEE (Institute of Electrical and Electronics Engineers). However, these other standards are often built on top of the NEC and don't negate its fundamental principles. They usually address specific design or performance requirements in addition to the NEC.

Utility Company

The NEC typically does not apply to the utility's equipment upstream of the service point (the point where the utility's equipment connects to the customer's equipment). The utility has its own standards and regulations. However, after the service point, the NEC almost certainly applies to the facility's electrical system.

Very Old Installations (Grandfathering)

In some cases, existing electrical installations that predate the current NEC edition may be "grandfathered" in. However, any modifications, repairs, or expansions to those systems must comply with the current NEC. Furthermore, even if "grandfathered," maintaining safety is still paramount, and older systems may need upgrades to meet modern safety standards. This doesn't give carte blanche to ignore safety regulations.

Research & Development (R&D) Exceptions

Some R&D facilities might have temporary exceptions for experimental setups, but these are very specific, controlled, and carefully documented situations. They do not apply to normal industrial operations.

Your Responsibilities as a Licensed Electrician

As a licensed electrician, you have a professional and ethical obligation* to follow the NEC (and any applicable local amendments) when performing electrical work. Your license is a testament to your knowledge and competence in electrical safety. Ignoring the NEC could put your license at risk, in addition to the safety and legal ramifications.

What You Should Do

1.

Research Local Codes

The MOST important step. Find out which edition of the NEC has been adopted by the governing body (city, county, state) in your location. Look for the official website of the building department or electrical inspector's office. They should have information on code adoption.2.

Consult with the Electrical Inspector

If you are unsure, contact the local electrical inspector. They can clarify which codes apply and answer any questions you have.3.

Document Your Concerns

If you are instructed to perform electrical work that you believe violates the NEC, document your concerns in writing (email or memo) and send it to your supervisor and potentially a higher authority within the company. Keep a copy for your records.4.

Refuse Unsafe Work (If Necessary)

This is a last resort, but if you believe that performing the work would create an imminent danger, you may have a legal right to refuse to do it. Consult with an attorney if you're unsure about your rights.5.

Review OSHA Regulations

Familiarize yourself with OSHA's electrical safety standards (specifically 29 CFR 1910.301 through 1910.399).
6.

Continuing Education

Keep your electrical knowledge up-to-date by taking continuing education courses on the NEC.

In Conclusion:

Your co-worker's statement is likely incorrect. The NEC is a crucial standard for electrical safety, and it almost certainly applies to your work in an industrial setting. As a licensed electrician, you have a responsibility to follow the code and ensure the safety of yourself and others. Prioritize your own safety and ensure you are not pressured into unsafe practices. It's better to be safe and informed than sorry. Flag for review