(a) Commissioner means the Commissioner of Agriculture and Markets of the State of New York.

(b) Person means any individual, firm, partnership, corporation or association.

(c) Milk dealer means any person licensed to receive, purchase, handle or sell milk pursuant to article 21 of the Agriculture and Markets Law and the applicable rules and regulations promulgated thereunder by the commissioner.

(d) Milk means all milk and milk products, as defined pursuant to subdivision seven of section 253 of the Agriculture and Markets Law, whether in bulk or packaged form.

(e) Payment means cash payment in full received on or before the due date established pursuant to this Part. Payment by check shall be treated as conditional payment but shall be defeated upon dishonor of the check.