charlie,
I'm not at work but I believe the 92 rop has an interpertation from the CMP stating PVC male adaptors do not require a bushing.
I didn't find any thing in the 92TCR, but did find one in the 95ROP, however I don't think it is a clear cut statement that PVC male adapters do not require bushings.
The panel statement on proposal 9-93 said:
"The code already allows for nonmetallic conduit termination fittings with rounded edges without additional bushings".
This does not clearly apply to male adapters, because they don't really have rounded edges. It is my opinion that the only PVC fittings that have rounded edges are the box termination fitting or an end bell.
Don
[This message has been edited by resqcapt19 (edited 05-13-2006).]