This is an updated set of flexible guidelines that shows designers and contractors how to determine the correct restraints for sheet metal ducts, piping and conduit, so that they are more likely to remain attached to the building during an earthquake. The manual shows how very low- and very high-risk areas of the country can be accommodated. Meets California Building Code, Title 24, Part 2 and International Building Code, 2006 for bracing ductwork, piping and conduit.