Abstract: At approximately 8:21 a.m. on December 18, 2013, Employee #1 and Employee #2, carpenters employed by a construction company, were engaged in interior carpentry at a commercial building. They were cutting "cookies" on a joist. Employee #1 and Employee #2 fell to the concrete floor, a fall height of approximately 16 feet. Emergency services were called, and the Ventura County Fire Department responded. The workers were transported to the hospital, where both were admitted and treated. Employee #1 required treatment for a fractured wrist and a fractured coccyx (tailbone). Employee #1 required treatment for multiple unspecified fractures. The Ventura County Fire Department reported this event to Cal/OSHA at 12:28 p.m. on December 18, 2013. The subsequent investigation determined that the employer was a construction company specializing in light commercial framing. The investigation concluded that Employee #1 and Employee #1 were working on a 30-foot joist that was approximately 16 feet from the concrete floor, and this joist was not securely braced or supported.