Act 321 of 2001 allows a superintendent to designate a person who contracts with a public school district to operate a school bus as a full-time school bus driver, regardless of the number of hours for which the person contracts, for purposes of participating in the Public School Employees Insurance Program. A person who contracts to operate a school bus for at least 720 hours during the school year is also considered a full-time bus driver. A full-time bus driver shall be eligible to participate in the Insurance Program provided they pay all costs associated with participating, unless the district opts to pay all or a portion of that cost.