2011 NEC
404.6(D)(2)(c) A non?grounding-type receptacle(s) shall be permitted
to be replaced with a grounding-type receptacle(s)
where supplied through a ground-fault circuit interrupter.
Grounding-type receptacles supplied through the groundfault
circuit interrupter shall be marked ?GFCI Protected?
and ?No Equipment Ground.? An equipment grounding
conductor shall not be connected between the groundingtype
receptacles.
Does not really apply to the OP's question. Although my previous reply kind of doesn't entirely apply either. I will try to straighten out what I said a little.
He is asking if it is acceptable to supply 2 wire receptacles from the load side of a GFCI.
He will not find anything in the NEC that specifically addresses this.(I think)
All new circuits are required to have equipment grounding conductor. A non grounding receptacle is allowed only because it was code compliant at the time of its installation, and is still allowed to be replaced with a 2 wire receptacle, or provide GFCI protection as a kind of compromise. Then we complicate it even more by adding tamper resistant requirements and maybe even weather resistant requirements which you probably will not find either of those in a two wire receptacle.
Certain receptacles are required to have GFCI protection. Has little to do with whether there is an equipment grounding conductor or not. You can provide GFCI protection to 2 wire circuits all you want, and probably should for safety's sake.