Final answer:
The question pertains to driving restrictions for youth operators, but the provided reference information discusses historical labor laws rather than traffic laws. Therefore, an accurate answer requires consulting specific state regulations on youth driving restrictions.
Step-by-step explanation:
The regulations for hours during which a youth operator under the age of 18 may not operate a motor vehicle are specific to regions and enforced through graduated licensing laws. The information provided does not directly correlate with driving restrictions but refers to historical labor laws setting workday limits for children.
To give an accurate answer concerning driving restrictions for a youth operator license, one would need to consult the specific state's department of motor vehicles or their equivalent, as these restrictions vary by location.