Is it allowed to bury Sch 40 gas pipe if wrapped with 20mil?

[north star]

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" So what’s the answer? I know that what I approve is no longer in the code......that makes it wrong.....some will say illegal. What do you do? There’s what I approve and there is nothing. Do you use the old code like I do? Do you ask for nothing? Do you ask for something in between ? "

Is there a Code compliant piping product in your area that the contractors could be installing ?

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[ICE]

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Is there a Code compliant piping product in your area that the contractors could be installing ?

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Pipe coated with epoxy and polyethylene pipe are allowed to be underground. It's the installation mistakes that trips them up.