WORKING PERMITS: Every minor 14 through 17 years of age must have a working permit unless otherwise stated in Chapter 4109. Minors must be at least 14 years of age to obtain a work permit.Workers ages 16 to 17 have no restrictions on working hours when school is not in session. Student applicants who are age 14 or 15 are required to obtain a work permit in all instances. Senate Bill 30 would allow 14 and 15yearolds to work until 9 pm yearround with permission from a parent or legal guardian. Work Permits are mandatory in Ohio for minors under 16 at any time and minors between the ages of 16 and 17 during the school term. 16 additional hours in the two-year period after the third day of their Stage 2 three-day suspension. Removal. According to the Ohio Department of Commerce's Minor Labor Laws, the minimum age for employment in Ohio is 16. Must be at least 16 years old. On Friday and Saturday nights, curfew is midnight for those 17 years old or younger.