Ill. Admin. Code tit. 77, § 996.500
a) Each companion animal owner or feral cat colony manager shall submit an Application/Eligibility Voucher form to the Department. This form includes the consent form (see Section 996.300(a)), the veterinarian certificate for reimbursement (see Section 996.700(c)), and the eligibility voucher (see Section 996.400(d)).
b) Each participating veterinarian shall submit a Veterinarian Application/Agreement to Participate (Agreement to Participate) form to the Department available on its website at http://www.idph.state.il.us/pdf/
Spay_Neuter_Veterinarian_Participation.pdf.