RESNET is the parent NATIONAL professional organization which sets the standards for raters, rater trainers, energy auditing software etc that are used in this industry.
The Florida Solar Energy Center, does this same service for Florida.
A section of Louisiana Department of Natural Resources administers the Home Energy Rebate Option or "HERO" program using Energy Raters. But this program is limited to Louisiana.
Moreover, the EPA's EnergyStar Homes program is a major partner in the evolution of these programs.
Visit the site of the National Energy Raters Association to see what distinguishes their members.