Presently, there are several states that have a license category for solar contractors, or have addressed solar installations from a regulatory perspective. These states include Arizona, California, Colorado, Connecticut, Florida, Hawaii, Maine, Michigan, Nevada, 3 U.S. Department of Energy – Office of Energy Efficiency and Renewable Energy/Solar Energy Technologies Program: http://www1.eere.energy.gov/solar/technologies.html May 2008 James Dunlop, P.E. 1 / 14 © 2008 JimDunlopSolar.com