I do not have a copy of Uniform Plumbing Code. Section 1209.5 lists acceptable gas piping materials and joining methods.
Is copper and brass allowed? The situation I am researching is low hydrogen sulfide (less than .3 grams of hydrogen sulfide) and dry (no drip legs required by gas supplier)
I know many AHJ do not allow copper and they forbid such with local amendments. What does the unamended code allow?