Meal Periods and Free Meals. No employee shall be scheduled to work more than five (5) consecutive hours without being allowed a meal period, except in cases of emergency. Any position which affords a one-half (1/2) hour meal period during which a free meal has previously been made available and during which the employee has previously been required to remain on the premises shall continue to have a free meal as a condition of employment in that position. No meal period shall be for less than one-half (1/2) hour.