Yes, it is epoxy coated rebar, Out in the west they also have an epoxy coating that is purple. They have different properties in the coating and are used in different applications.
The "Z" bar I mentioned above is in a Yellow coating.
I "heard" (so it may/may not be true) that a job one time was supposed to use epoxy coated rebar, but the shop sent black (that is the term we use for uncoated plain old rebar)) bar instead. The contractor didn't want to wait for it to be refabbed, so he told the guys to go to paint store, get a can of green paint, bring it back and coat the bars with that instead...