HBI assembles industry subject matter experts from the NAHB federation to develop the first sets of National CRAFT Skill Standards for Residential Carpentry and House Wiring. They are the foundation for a growing set of HBI programs and resources including the Residential Construction Academy Series of textbooks and educational materials. Standards and textbooks for facilities maintenance; green/energy efficient building; heating, ventilation and air conditioning (HVAC); masonry; plumbing; and solar follow.