Please note: All interim revisions for this edition available at time of your purchase will be included.Sway Brace Devices for Sprinkler System PipingUL 203A1 Scope1.1 These requirements cover sway brace devices intended to protect fire protection system piping in locations subject to earthquakes. These devices are intended for installation in accordance with the Standard for the Installation of Sprinkler Systems, NFPA 13.1.2 These requirements cover restraint devices intended to restrict movement of fire protection piping.