How can I get an older version of the NEC (National Electrical Code) online for free? Specifically, I need a copy of the “1975 NEC”. I could get it on Amazon for $29, but I’d rather not pay that much for it if I don’t have to. Or I could get the “Guide to the 1975 Electrical Code” for $9 (which I probably will get). I already checked to see if I could check out the physical book at my library. But it is not available. I also tried to find where it is published online so that I can just simply print out the pages that I need. But no luck.

  • "NEC for free" good luck doing that legally. – user4302 Nov 12 '17 at 5:34
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    local libraries often have a copy you can use if not check out. often, they have older copies, but i don't know about THAT old. you might try the card catalog at the library, looking around other branches for an older publication date copy they will transfer in to you. – dandavis Nov 12 '17 at 6:23
  • Aside from the well-stocked library reference section, Used bookshops, or for "only a few pages" sometimes googling the article number and 1975 NEC might get what you need. It's a bit surprising to find anywhere that far behind the times, though, so consider the potential improvements in safety as well as easier access to newer code years... – Ecnerwal Nov 12 '17 at 16:53

You can purchase a used copy of the 1975 NEC starting at $7.18 at Amazon:

1975 NEC at Amazon


If you go to the NFPA website, you can you can get free access to read-only copies of the NEC. You will have to sign up for an account though.

Looks like they have 1971 and 1978 versions available.

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