I have a contractor that wants to homerun from panel to outlet with a 12 awg nm cable and then tap down to a 14 awg to the rest of the recepticle outlets. 20 amps verses 15 amps. He wants to put in a 15 amp breaker for it's overcurrent protection. The problem I am having this is not an appliance circuit. It's a require recepticle circuit say for a bedroom or living room. The conductor in the panel is identified as a 12 awg with a 15 amp breaker. Does anyone has any remarks on this?