The Seismic Restraint Manual: Guidelines for Mechanical Systems, 3rd edition is an updated set of 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. This edition includes a more extensive list of bracing options and has been revised as of December 2009 to comply with current building codes all within a single document for user convenience.

This is another in a series of SMACNA technical manuals to receive accreditation by the American National Standard Institute (ANSI).