Work permits are required for all minors under the age of 18 to work in the State of Maryland. Complete the online application at the Maryland Department of Labor's Employment of Minors (Work Permit) page.Review and print your permit. Step 2 – Take the application to the employer to complete the employer's section. Step 3 – Have the parent or guardian review, sign and date the application. Minors 14 through 17 years of age may only work with a work permit. Edit, sign, and share work permit maryland form online. No need to install software, just go to DocHub, and sign up instantly and for free. 1. Gather all required personal and employer details. In Maryland, you must have a Minor Work Permit if you are between the ages of 14 and 17 years old.