City code 7-12-030 Animals shall be restrained. Each owner shall keep and maintain his animal under restraint; provided, however, that this section shall not apply to any dog being used for rescue or law enforcement work. (Prior code 98-3)
"Animal under restraint" means any animal either secured by a leash or lead, or within the premises of the owner, or confined within a crate or cage, or confined within a vehicle, or on the premises of another person with the consent of that person, or within an area specifically designated by the commission as an animal exercise run when said animal is under the control of a competent person. (from code 7-12-020, definitions.)
Here are a few selections from other dog-related ordinances:
7-12-200 Rabies vaccination required. Each owner of any dogs six months of age or older shall have such dog vaccinated against rabies by a licensed veterinarian of his choice. Evidence of vaccination shall consist of a certificate signed by the veterinarian. Type and brand of vaccine used shall be as approved by the Department of Agriculture of the state of Illinois. Vaccination shall be required every three years or at such other interval as required by the Department of Agriculture of the state of Illinois.
A current certificate of vaccination issued by a veterinarian licensed to practice in any other jurisdiction establishing vaccination with a vaccine approved by the Department of Agriculture of the state of Illinois, may be accepted by the executive director [of the Commission on Animal Care and Control]. (Prior code 98-8.6)
7-12-140 License required. Each owner, as defined in this ordinance, of each dog six months of age or older shall pay a city license fee for the privilege of owning such dog, unless such dog shall be within the confines of a veterinary hospital, pet shop, kennel or humane society. Dogs which are the property of any subdivision of local, state or federal government shall be issued complimentary licenses. Any dog properly trained to quide or otherwise assist a blind person shall be issued a complimentary license under the presentation of proof of vaccination. (Prior code 98-8)
7-12-190 Citations for unvaccinated and/or unlicensed dogs. The commission, through its animal control officers shall issue citations against the owner of any dog that is determined to be unvaccinated and/or unlicensed, unless such dog is exempted from same by other specific provisions of this ordinance. (Prior code 98-8.5)
7-12-420 Removal of excrement. No person shall appear with a pet upon the public ways or within public places or upon the property of another, absent that person's consent, without some means for the removal of excrement; nor, shall any person fail to remove any excrement deposited by such pet. This section shall not apply to a blind person while walking his or her guide dog. (Prior code 98-19)
7-12-290 Cruelty to animals--Fines. No person shall do any of the following:
A.Overload, overdrive, overwork, beat, torture, torment, bait, mutilate or cruelly kill any animal, or cause or knowingly allow the same to be done;
B.Unnecessarily fail to provide any animal in his or her charge or custody with proper food, water, air and sanitary shelter, such shelter to be sufficient to provide natural light or artificial illumination during reasonable hours and protection from the weather and space within sufficient for the animal to stand in an upright position, and lie down stretched out so that no part of its body need touch the sides of the shelter structure;
C.Cruelly force into undue physical exertion any animal;
D.Carry, keep, drive, or cause to be carried, driven or kept, any animal in a cruel manner;
E.Leave for any unreasonable length of time any animal unattended in a motor vehicle, trailer or other enclosure when the outside temperature shall exceed 85 degrees Fahrenheit in such a manner that said animal does not have proper air circulation;
F.Have, keep or harbor any animal which is infected with any disease transmissible to other animals or man, or which is afflicted with any painful disease or injury, including severe parasitism, unless such animal be under the care of a veterinarian.
G.Abandon any animal on any public way or in any place where it may suffer or become a public charge:
H.Stake out unattended, or leave unrestrained outside and unattended any female dog in season.
Any person who shall violate any provision of subsection (A) shall be fined not less than #300.00 nor more than $1,000.00 for each offense; any person who shall violate any provisions of subsections (B), (C), or (D) shall be fined not less than $100.00 nor more than $500.00 for each offense; any person who shall violate any provision of subsections (E), (F), (G) or (H) shall be fined not less than $25.00 nor more than $200.00 for each offense. (Prior code 98-11)
7-12-430 Violation--Penalty. Any person who shall violate any of the provisions of this chapter for which no specific penalty is provided, shall be fined not less than $10.00 nor more than $200.00 for each offense. (Prior code 98-20)
(From the City Clerk of Chicago's animal code pages)