Provided by AHIT. The 2015 International Residential Code® Study Companion is a comprehensive self-study guide for the requirements of the 2015 International Residential Code® for One- and Two-Family Dwellings. The book addresses building, mechanical, plumbing, fuel gas and electrical provisions. Particular emphasis is placed on the building planning requirements of Chapter 3 and the floor, wall, ceiling, and roof framing provisions. The Companion’s 18 study sessions provide practical learning assignments and contain specific learning objectives, applicable code text and commentary, and a list of questions summarizing key points for study. A 35-question quiz is provided at the end of each study session enabling users to test their knowledge of the material.