Agriculture: other; requirements for egg-laying hens; revise. Amends sec. 46 of 1988 PA 466 (MCL 287.746).

SB 28 amends Michigan's Animal Industry Act to require egg-laying hens to be housed in cage-free systems that allow natural behaviors (like perching and dust bathing) and provide minimum floor space per hen, as defined by the United Egg Producers' 2017 guidelines. It directly affects egg producers and sellers of shell eggs in Michigan, prohibiting the sale of eggs from hens confined in non-compliant systems (e.g., battery cages) unless the farm has fewer than 3,000 hens. Key provisions include banning tethering that prevents hens from turning around freely or fully extending limbs, with exemptions for veterinary care, research, and small farms. The law enables civil enforcement by the state to stop sales of non-compliant eggs, without criminal penalties.