Friends,
I found this tasty bit of info on the PA Legislature site. If you follow the link, you will find that agents that are PA residents will now need to be officially licenced through thier local county, as well as have completed the PA Lethal Weapons course. PA will reciprocate licensure with other states as long as..(and this is where it gets tricky!)..the reciprocating states has a SIMILAR licensure program. This legislation is dated 2/8/2005, and takes effect in 120 days. I hope this helps.
here is the link...
http://www.legis.state.pa.us/2005%5F0/sb0215p0207.htm