In this article, unless the context otherwise requires:

1. "Extraordinary emergency services" means:

(a) The actual and related costs of additional police, fire fighting, public works, paramedic and medical personnel utilized other than those who are normally on duty; and

(b) The actual costs of rented or leased equipment reasonably needed by the state or political subdivision in responding to the emergency; and

(c) The actual or replacement costs of chemicals or disposable materials utilized in responding to the emergency; and

(d) Costs incurred in the evacuation or reasonable temporary housing of persons displaced from their property by the emergency.

2. "Hazardous material" means a substance which has been determined by the United States department of transportation under title 49, Code of Federal Regulations, to be capable of posing an unreasonable risk to health, safety and property if transported in commerce.

3. "Hazardous substance" means a material, and its mixtures or solutions, which has been determined by the United States department of transportation under title 49, Code of Federal Regulations, to be capable of posing an unreasonable risk to health, safety and property if transported in commerce.

4. "Hazardous waste" means any material that is subject to the hazardous waste manifest of the department of health services or the United States environmental protection agency.