FIRE DIAMOND. People often notice a colored sign on a building called a fire diamond. Fire diamonds located on tanks and buildings indicate the level of chemical hazard located there. The four colors are blue, red, yellow, and white. The numbers superimposed over the colors rank the severity or danger, ranging from one to four, with four being the highest rating.
Minors aged 14 and 15 can work from 7:00 a.m. until 9:00 p.m. while 16- and 17-year-olds can be employed between the hours of 6:00 a.m. until 10:30 p.m. (11:30 p.m on Friday or Saturday or when not regularly attending school) for up to 48 hours per week of school and work combined.
14 years old is the minimum age for non-agricultural employment covered by the FLSA. The basic rules for when and where a youth may work are: Youth 18 years or older may perform any job, whether hazardous or not, for unlimited hours. Youth 16 or 17 years old may perform any non-hazardous job for unlimited hours. Youth 14 and 15 years old may work outside school hours in various non-manufacturing, non-mining, non-hazardous jobs.