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The color of the Romex® NM Cable jacket were changed to aid in the inspection process. It speeds up the inspection process when the inspector doesn't have to check each cable to make sure it is sized accordingly.

The color code is as follows:

White- 14 awg for 15 amp circuits

Yellow- 12 awg for 20 amp circuits

Orange- 10 awg for 30 amp circuits

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Q: Why does NM B cable come in different colors and what does each color represent?
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