There is an link on the National site under the Question of Legalitysection,
@ the bottom of the site scroll by Christy Cupps that covers various Fed & State Laws regarding those who engage in various Hobbying activities.
These may also vary on the Local level depending upon locale. CC thought the information would be especially pertinent to Traveling Ladies. Though some of the info should be of interest to us Gents too.
http://prostitution.procon.org/view....rceID=000119#p