(a) A self-insurer is any person, firm, association or corporation that:

(b) Motorcycle means a vehicle as defined in section 123 of the New York Vehicle and Traffic Law, and which is required to carry financial security pursuant to article 6, 8 or 48-A of the Vehicle and Traffic Law.

(c) Motor vehicle means a motor vehicle, as defined in section 311 of the New York Vehicle and Traffic Law, and also includes fire and police vehicles, but shall not include any motor vehicle not required to carry financial security pursuant to article 6, 8 or 48-A of the Vehicle and Traffic Law, or a motorcycle as defined in subdivision (b) of this section.

(d) Occupying means in or upon or entering into or alighting from.

(e) Personal injury means bodily injury, sickness or disease.

(f) Relative means a spouse, child or other person related to the self-insurer (who is a natural person), by blood, marriage or adoption (including a ward or foster child), who regularly resides in the self-insurer's household, including any such person who regularly resides in the household but is temporarily residing elsewhere.

(g) Use or operation of a motor vehicle or a motorcycle includes the loading or unloading of such vehicle.