597u.
(a) A person, peace officer, officer of a humane society, or officer of an animal shelter a pound or animal regulation department of a public agency shall not kill an animal by using either of the following methods:(1) Carbon monoxide gas.
(2) Intracardiac injection of a euthanasia agent on a conscious animal, unless the animal is heavily sedated or anesthetized in a humane manner, or comatose, or unless, in light of all the relevant circumstances, the procedure is justifiable.
(b) With respect to the killing of a dog or cat, a person, peace officer, officer of a humane society, or officer of an animal shelter a pound or animal regulation department of a public agency shall not use any of the methods specified in subdivision (a) or any of the following methods:
(1) High-altitude decompression chamber.
(2) Nitrogen gas.
(3) Carbon dioxide gas.