I am putting in outdoor outlets on my front deck. I have 12-2 UF wire to run underground from my electrical panel to a j-box under my deck. Can I run 12-2 romex (usually used for indoor wiring) from the j-box through pvc conduit to the weatherproof electrical outdoor outlets?

No you can't. Conductors in exterior conduit are considered in a wet location where NM cable is not permitted...

Thank you.

no you can't. Conductors in exterior conduit are considered in a wet location where nm cable is not permitted....

x2