Gator, if you're referring to a part-time Air Driver position, read:
ARTICLE 40, Section 1, (d), (2)
Less than eight (8) hour air drivers (part-time air drivers) who have a regular scheduled start time shall have a three (3) hour daily guarantee. They shall receive overtime pay for hours worked in excess of eight (8) hours in a twenty-four (24) hour period or in excess of forty (40) hours per week.