GRADUATE MASTER BUILDER (GMB)
GRADUATE MASTER BUILDER (GMB) is for experienced veterans only, and is the ultimate symbol of the building professional. Before beginning the certification process and attending the advanced GMB courses, you must have ten years of building experience and have earned a Certified Graduate Builder (CGB) or Certified Graduate Remodelor (CGR) designation. To maintain this certification requires continuing education. Bruce A. Sommers has earned this designation.