Are teenager required to have a work permit ?

The minimum age for employment is 14.
Work Permits are required for all employed minors under the age of 18.
Employers are required to keep work permits on file for each employed minor.
A new work permit is required when a minor changes employers.
There are seperate hours restrictions and prohibited occupation requirements for 14 and 15 year-olds and 16 and 17 year-olds.
This is the child work law for delaware.And this is the offical work hours.
Before 7:00 a.m. or after 7:00 p.m.- except from June 1st through Labor Day when the evening hour shall be extended to 9:00 p.m.
More than four (4) hours per day on school days.
More than eight (8) hours per day on non-school days
More than eighteen (18) hours in any week when school is in session for 5 days.
More than six (6) days in any week.
More than forty (40) hours per week when school is not in session and
More than five (5) hours continuously without a non-work period of at least 30 consecutive minutes.
I hope this helps.