Ally's Law- USAIt varies by USA state. The Restroom Access Act, also known as Ally's Law, is legislation passed by several U.S. states that requires retail establishments that have toilet facilities for their employees to also allow customers to use the facilities if the customer has an inflammatory bowel disease or other medical condition requiring immediate access to a toilet.
Where in force: These states had passed versions of the law: Colorado, Connecticut, Delaware, Illinois, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Ohio, Oregon, Tennessee, Texas, Washington, and Wisconsin. A Virginia bill, which would have levied fines of $100 for non-compliance, was shelved due to concerns about
exposing businesses to lawsuits, as well as concerns about
security and intellectual property.
https://www.healthline.com/health/crohns-disease/restroom-legislationInternationallyIn Australia, the association Crohn's & Colitis Australia (CCA) encourages businesses to support people with such medical conditions by recognizing the Can't Wait Card issued by the CCA. The CCA states:
Crohn's & Colitis Australia (CCA) is inviting retailers, business owners and venue operators to show their support for people with the medical condition Crohn's and colitis, collectively known as inflammatory bowel disease (IBD), by displaying a window sticker recognising the Can't Wait Card in their store.
Other countries including the UK have similar programs of voluntary participation by businesses, one such program in the UK is the Bladder & Bowel Community's Just Can't Wait Card
A card with no country specific indications is available through www.theibdlife.com/access explaining the possibility of legislation and the gravity of the card holders disability and need for restroom access.
http://www.cantwait.net.au/