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Thank you for taking my question. I follow this daily and have for many years. I also am an a electrician and electrical instructor. My question is if I were to rewire an existing apartment on the 19th floor in a type one construction. The floors and above the ceilings are concrete and all metal studs. The existing wiring method is type NMC. Building is 60 yrs old. Every floor has 4 apartments. Customer wants new lighting and receptacle outlets added. I believe NMC is allowed per NEC because of the type of construction. Please give me your thoughts. I know the AHJ has final say.
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