Absolutely. Honestly I'm the kind of person who, if I were an inspector, wouldn't be thrilled about it. However, the pipe I saw was buried (we were digging along side it to add more conduit for power). I can't imagine that an inspector would be going through the entire property and having someone dig to show that the pipe they used was up to code...however, I'm pretty sure that they'd get dinged for not using pipe dope at all the joints. Makes sense to me, at least.