All water heaters manufactured for sale in California on or after July 1, 1991, shall include a statement in the installation instructions that water heater units must be braced, anchored, or strapped to resist falling or horizontal displacement due to earthquake motion. The instructions provided by the manufacturer may include a reproduction of the generic installation instructions and standard details as prepared by the Division of the State Architect in accordance with Section 19215.
Ca. Health and Saf. Code § 19212