Vaccinations

DPI Queensland have an application form on their web site which is an application for vaccination of high performance high risk horses. The interesting feature of the application is "the applican is responsible for the veterinary cots of administration of the vaccine and implantation of the microchip and all ongoing costs of the vaccination program"
Can someone please tell me why if any one of us applies for the vaccine we should have to pay when the racrehorse industry does not.
Annette-Gatton.Qld