Hi Bob,

Dig through some of the Best Legal resources Focusing on Contractor and Trade related matters etc...

Google Doesn't always have the Answers...

http://findlaw.com/
http://www.findlaw.com/toc.html
http://www.nolo.com/
http://www.libraryspot.com/libraries/lawlibraries.htm

Otherwise you'll have to contact the Curb painting Experts on Sowpubs and the industry...

Phil