1.    “Carpool” means a ridesharing arrangement in a private passenger automobile or station wagon by two or more persons, regardless of their relationship to each other, to and from common or nearby employment sites. The term includes:

a.    Shared-driving, in which the car of each person in the arrangement is used and alternated on an agreed-upon schedule; and

b.    Shared-riding, in which the same car is used during the arrangement and each member contributes an agreed-upon amount to compensate for the cost of operating the pool.

2.    “Ridesharing arrangement” means the transportation of persons in a motor vehicle where the transportation is incidental to another purpose of the driver or owner and is not provided for pecuniary gain. The term shall include ridesharing arrangements known as carpools and vanpools.

3.    “Vanpool” means a ridesharing arrangement by a prearranged membership group whose members are picked up at specified points to be taken to and from common or nearby employment sites. The vanpool members each contribute an agreed-upon amount to compensate for the cost of operating the pool, the motor vehicle used is other than a passenger automobile or station wagon, and is manufactured and equipped to carry not more than fifteen persons, including the driver. The vanpool may be owner-operated or employer-sponsored.