I am currently "on loan" to a local So Cal C-10 as my regular company is slow right now and the two owners are friends. I myself have a had a C-10 since 1982 and am a state certified journeyman as well but frankly I don't do that much electrical anymore, this is a temporary position. Anyway the "boss" is telling me that multiwire branch circuits are no longer allowed and he has us pulling a separate neutral for every circuit. This HAS to be BS, no? He only buys 12/2 when metal clad is called for, says the common neutral stuff is no longer code compliant. Please tell me he's an idiot, this can't be true can it? I'll admit I'm a bit out of date on the NEC and there could be some local jurisdiction thing going on but still it just seems totally implausible to me. I understand the tie bar on the breakers but separate neutrals???????? Seems like NEMA would have stopped that in it's tracks, no more 3 or 4 wire products? Oh just to be clear the application is light commercial, in this case a fast food restaurant. Comments?