The bill prohibits local governments from enacting or enforcing residential occupancy limits unless those limits are tied to a minimum square footage per person requirement that is necessary to regulate safety, health, and welfare based on familial relationship while allowing local governments to implement residential occupancy limits based on demonstrated health and safety standards such as international building code standards, fire code regulations, or Colorado department of public health and environment wastewater and water quality standards. (Note: Italicized words indicate new material added to the original summary; dashes through words indicate deletions from the original summary.) (Note: This summary applies to the reengrossed version of this bill as introduced in the second house.)