From my experience PCS releases them to the PA board and then the PA board looks them over. Then the PA board gives NCEES the ok to release the results.
I do not believe that there was a board meeting Jan. 2013 before results were released. I was also told by the board that they do not need to meet to release results.
If you live in PA you have a long wait ahead of you so TRY to enjoy the Holiday. In December 2012, we got our results about a month after NCEES released them to the states. It was awful.