Hovercraft means a vehicle which is designed to be supported when in motion wholly or partly by air expelled from the vehicle to form a cushion of which the boundaries include the ground, water or other surface beneath the vehicle;
Tight-fitting facepiece means a respiratory inlet covering that forms a complete seal with the face.
Motorboat means the same as that term is defined in Section 73-18-2.
Light vehicle means a motor vehicle commonly referred to as an automobile, van, sport utility
Watercraft means any vessel, craft or thing (other than a Hovercraft) made or intended to float on or in or travel on or through water.