Minors aged 15 days to 18 years employed in the entertainment industry must have a permit to work, and employers must have a permit to employ. 16 and 17-year-olds may work up to 8 hours a day, up to 48 hours a week, and between a.m.Youth ages 16 to 29 are placed into a city-wide Employment and Career Services Program or Direct Employment Opportunities with private employers. Federal law does not impose any limit on how long a 16-year-old can work in a given day. I am curious if anyone here can speak to working at the County of Santa Clara? This manual is designed to assist hiring managers with appropriate hiring processes and. Human Resources practices. That in 2022, there were 95,267 teens (ages 16-19) living in Santa.