a long slender part, such as the portion of a long bone between the wider ends or extremities, the shaft of a hair and the central shaft of a feather.
maximum number of hours for 16- and 17-year-old minors is 4 hours on a school day (6. hours with a special variance), 8 hours on a Friday or any non-school day and not more. than 6 days per week. The maximum number of hours of work for 16- and 17-year-old. minors is 20 or 28 (with the optional special variance).
In addition to maximum hours and time of day restrictions, no minor (17 and younger) may work longer than 6 consecutive hours without a 30-miunute duty free meal period. No minor under 16, other than those working in agriculture or delivering newspapers, may work more than 6 days in any workweek. Hours worked during school hours as part of an approved written work experience program do not count as part of the total permitted hours of work per day or per week.