NM Cable Jacket Color

[tom baker]

I recently came to acquire a fairly large quantity of older 12/3 NM cable. The sheathing on the cable is white. I know that currently the industry standard is yellow, but is it acceptable (per the NEC) to use the white-sheathed 12/3 cable?

Thank you.

As long as its NM-B...

 

[mopowr steve]

I did not know that the B stood for temperature rating. Thought it stood for Building wire.
From what I remember you could have white jacketed NM-B with 90* conductors between the mid 80's thru 90's until the color code of jacket was manufactured to correspond to the wire gauge of conductors around early 2000's. Prior to mid 80's the conductors were thn 75* conductors (I thought) and K&T and other rubber/cloth wires were 60*

Current jacket color code:
White=#14 conductors
Yellow=#12 conductors
Orange=#10 conductors
Black=#8 and #6 conductors