(1) A person who is liable to pay a fee under regulation 18(1)(d) for the attendance of a unit in response to a hazardous material incident or toxic fire incident is, in addition to the fee required under that regulation, liable to pay to the Board any additional costs incurred by the Board calculated in accordance with subregulation (2).
(2) Additional costs of attending a hazardous material incident or toxic fire incident are the costs incurred by the Board in attending or dealing with the effects of attending the incident and include the following—
(a) the cost of obtaining advice as to the chemical analysis and environmental impact of materials involved in the incident or its containment;
(b) the cost of testing, cleaning, maintaining, repairing or replacing protective equipment;
(c) the cost of products purchased for, or consumed in, neutralising the hazard involved in the incident;
(d) the cost of hiring equipment and vehicles to deal with the hazard involved in the incident.