Please help me. By code, can I run a gas line and a electric line in the same ditch. I have been told yes, no, maybe, probally, uh huh and naa. Can someone please help. Thank you

Thanks for the clarification regarding b/x versus metal clad and AC cable. I have a couple follow-up questions: > Does the short run limitation you mentioned previously also apply to metal clad, AC cable and greenfield? > If so, what are your thoughts on these products compare to Romex in terms of safety? Again, I can't imagine armored cable isn't at least as safe as romex - so why a length limitation on it but not Romex? Am I missing an important issue/consideration? > Does greenfield have a typical outside diameter that will help me identify it (or is that the greater than 3/8" that you mentioned previously)? OR, do I just look to see if the armored cable has standard t/w wire without the paper wrap, etc.? > Assuning I find greenfield in my house - and want to replace the older wire - will fishtape pull through greenfield without snagging or is it more trouble than it's worth? Thanks for taking the time to educate me - I really appreciate getting feedback from a knowledgable professional. Ed