Michigan Compiled Laws, Chapter 287. Animal Industry § 287.339a

Sec. 9a. An animal control shelter or animal protection shelter shall maintain written records on the total number of dogs, cats, and ferrets under 6 months of age, the total number of dogs, cats, and ferrets 6 months of age and older, and all other animals received, returned to owners, adopted to new owners, sold, or transferred with or without remuneration to any person, the number of adopted dogs, cats, and ferrets that were altered, the number of adopted dogs, cats, and ferrets that were not altered, and the number of dogs, cats, and ferrets euthanized annually, and shall annually provide a copy of these statistics to the department, by March 31 of the year following the year for which the statistics were compiled.