Md. Code, Health - General § 18–319

(a) A licensed veterinarian who vaccinates a dog, cat, or ferret against rabies:

(1) May select the vaccine to be used;

(2) Shall administer the vaccine in a manner that is consistent with the recommendations of the National Association of State Public Health Veterinarians;

(3) Shall issue to the owner of the dog, cat, or ferret a vaccination certificate, on the form that the Department approves; and

(4) Shall keep a record of the vaccination for a period of 5 years.

(b) The information in the rabies vaccination record that a licensed veterinarian keeps may not be used:

(1) To license the dog, cat, or ferret; or

(2) To tax the owner of the dog, cat, or ferret.