Aside from those code references and Jim's great point about the quality varying, that tap is not approved for gas use. This thing can leak like hell and is dangerous. Also, the copper should be sleeved in conduit to protect it from curious little boys and weed eaters. It should be sleeved where it goes into the ground and through the foundation.

I would call this out whether TREC or Shrek says so.

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disgusted with some people on this forum. Out of here!