ECN Forum Forums Code Related Discussion NEC & other Code issues Burial depth 20A circuit

I agree with 12" for the depth, as per 300.5 Expanding onto this...You are allowed the shallower burial depth because it is GFCI protected, correct? How do you guys fell about this: Does the entire circuit have to be GFCI protected (at the breaker), or does a GFCI receptacle outlet satisfy the requirement? Thanks in advance for your thoughts