In the first Edition, the principal author, Mr. Thomas J. Am, made extensive references to Section VIII, Division 2, and these references remain in both the second and third Editions. Users of this Chapter of the Companion Guide should be aware that in the 2007 Edition of the ASME Boiler and Pressure Vessel Code, Section VIII, Division 2, Alternative Rules for Construction of Pressure Vessels, was completely rewritten and revised. This “New” Section VIII, Division 2 has little conformity with the rules of “Old” Section VIII, Division 2. The rules for “Design by Analysis” were first embodied in the 1963...