Minors are allowed to work limited hours compared to adults in Washington. In order to hire a minor under the age of 14, employers need to get permission from a superior court judge in the county where the minor lives.Youth who are 14 or 15 years old may not work before a.m. Also, they may not work later than p. For Minors Under 16: 8 hours of work per day, 40 hours per week up to 6 days a week are permitted when school is off. If you are 14 or 15, you are disallowed from working. This is probably the main issue. From June 1 through Labor Day, they cannot begin work earlier than a.m. Or continue working later than p. Washington State and federal laws spell out which jobs are prohibited.