National Electrical Installation Standards

Standards as High as Your Own

Wednesday, September 13, 2017


A customer has some 24 awg multi conductor cable that is not printed. They wish us to print on the cable only; "NEC Section 310.11". Since this only refers to the color code (we verified the colors of the conductors) we are wondering if this is ok to print this on the jacket.

Darrel Schultz



Hey Darrel thanks for your question. The marking wording in 310.11 was relocated to 310.120 during the processing of the 2011 NEC. Although it is not specifically stated this marking is typically provided by the manufacturer when the conductors and cables are made. Also depending on what the cables are being used for additional marking could be necessary as stated in 725.179. Before marking the cables you should check with the AHJ to see what they will allow or require.

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