New and updated features of this title Series-wide revisions REVISED: A greater focus on service, across modules, ensures that the most relevant job skills are covered. This reorientation reflects the fact that more plumbing work is geared toward service. REVISED: Modern equipment, tools, approaches and best practices have been incorporated into both the text and art. Examples include press fittings and the latest PEX connection methods. NEW: A new, improved design builds upon the visual appearance and readability of the material. Content changes based on industry updates UPDATED: Content has been added and revised across modules. New and revised topics include digital thermometers (02301); desalination (02303); plenums, water expansion tanks, augurs and closet augurs (02311); and identifying essential devices before turning off electrical circuits (02311). UPDATED: Tables in Module 02312 have been updated with the IPC 2021 versions.

Also in that module, section 3.0.0 was revised to have two sub-objectives instead of nine. UPDATED: Several new questions were written for the module review and exam.