Abstract: At approximately 9:15 a.m. on July 30, 2012, Employee #1, a 48-year-old male laborer with Statewide Stripes Inc., was applying hot asphalt adhesive and traffic reflectors to streets. Employee #1 was coiling and securing the hot asphalt application gun/hose combination to the truck before traveling to the next work location. Employee #1 was securing the application gun and hose to a hose reel and hook at the front of the truck box so that they could travel to the next work location. While attaching the nozzle to a support clip, the clip dislodged the safety on the gun which allowed movement of the trigger and a small shot of hot asphalt to be extruded out of the gun onto Employee#1's left arm. Employee #1, who was wearing a short sleeved cotton T-shirt at that time, used a rag provided to him by a coworker to wipe the hot asphalt from his arm. The coworker then transported Employee #1 to an Urgent Care Clinic for first aid treatment. Employee #1 was transferred to UCSD Burn center, where he was hospitalized over 24 hours due to a serious burn injury on the left arm.