Ohio Public Restroom Laws: Rules for Businesses, Schools, and Food Service

Ohio’s public restroom laws come from several places at once: the state plumbing code sets how many fixtures a building needs, a narrow statute addresses customer access at retail stores, separate laws govern schools and public colleges, health department rules cover food service sanitation, and the building code pulls in federal accessibility standards. Which rules apply to a given restroom depends on what kind of building it sits in.

Who Has to Provide a Public Restroom

The Ohio Plumbing Code, Chapter 4, Section 403, requires every building open to the public to install a minimum number of plumbing fixtures. The number is tied to the building’s calculated occupant load and its use classification, with different ratios for assembly halls, mercantile spaces, offices, and other categories listed in Table 403.1.¹

Section 403.2 generally requires separate men’s and women’s facilities, but the code exempts smaller spaces:

Buildings with a total occupant load of 15 or fewer, counting employees and customers.
Retail (mercantile) occupancies with a maximum occupant load of 100 or fewer.
Office (business) occupancies with a maximum occupant load of 25 or fewer.
Single-user toilet rooms, which do not have to be designated by sex.¹

A small coffee shop can meet the code with one restroom. A department store or concert venue cannot. Falling below an exemption threshold does not relieve a building from the overall fixture minimums for its classification, and a building permit can be denied on that ground.

Does a Business Have to Let You Use the Restroom?

In most situations, no. Ohio has no general law forcing retail businesses to open their restrooms to anyone who walks in, and stores commonly limit access to paying customers.

The one carve-out is for people with certain medical conditions, and even that is softer than it first appears. Ohio Revised Code Section 4173.02 says retail establishments with an employee restroom are “encouraged to permit” a customer to use it during normal business hours when specific conditions are met. The word “encouraged” is doing the work: the statute carries no penalty for a business that refuses.²

To fall within the statute, the customer must have an “eligible medical condition” or use an ostomy device. Section 4173.01 defines eligible medical conditions as Crohn’s disease, ulcerative colitis, any other inflammatory bowel disease, irritable bowel syndrome, or any other condition requiring immediate access to a toilet.³ Two more conditions apply: the employee restroom cannot be in an area that would create an obvious health, safety, or security risk, and no public restroom can already be immediately accessible to the customer. The business is not required to make any physical changes to its employee restroom.²

Businesses that do grant access get a liability shield. Under ORC Section 4173.03, a retailer and its employees cannot be held civilly liable for injury or death arising from the use of the employee restroom, as long as they were not willfully or grossly negligent and the access was granted under the conditions in Section 4173.02.³

Restroom Rules in Schools and Public Colleges

Ohio treats educational facilities differently. Under ORC Section 3319.90, every public and private K-12 school must designate each student restroom, locker room, changing room, and shower room for the exclusive use of one biological sex, which the statute defines by reference to sex chromosomes, naturally occurring hormones, gonads, and nonambiguous genitalia present at birth. A student may use an original birth record to establish biological sex under the law.

Section 3345.90 carries the same rule into state institutions of higher education. Each public college or university must designate student restrooms and similar facilities by biological sex and post clear signage. Neither statute prohibits schools from offering single-user or family restrooms as separate options; the designation requirement is aimed at multi-occupancy spaces.

Sanitation Rules for Food Service Restrooms

Restrooms inside restaurants and other food service operations have to meet sanitation standards set by the Ohio Department of Health under Ohio Administrative Code Chapter 3701-21. Facilities must provide handwashing stations with running water, soap, and either individual towels or air-drying devices. Walls, floors, and ceilings must be smooth and cleanable, and local health districts inspect to verify conditions.

Violations of Ohio’s food safety laws under ORC Chapter 3717 are criminal, not just administrative. A first offense is a third-degree misdemeanor, carrying up to a $500 fine and 60 days in jail. A second or subsequent offense is a second-degree misdemeanor, with penalties up to $750 and 90 days in jail. Each day the violation continues counts as a separate offense, and ignoring a court order to correct conditions can bring contempt penalties of up to $1,000 per day.⁴

Accessibility Requirements for Public Restrooms

Ohio incorporates federal accessibility standards into its building code. Chapter 11 of the Ohio Building Code requires that each toilet room in a new or substantially renovated building be accessible. Where water closet compartments are provided, at least 5 percent must be wheelchair accessible, and if six or more compartments and urinals are present, an additional 5 percent must be ambulatory accessible.⁵

The code points to ICC A117.1 for the technical specifics: door widths, interior turning space, grab bar placement, sink heights, and faucet controls that operate without tight grasping or twisting.⁵

Enforcement runs through the Americans with Disabilities Act. As of mid-2025, a first ADA Title III violation carries a maximum civil penalty of $118,225, and a subsequent violation can reach $236,451. These figures are adjusted periodically for inflation and apply to any public accommodation violation, restroom accessibility included.⁶

1
International Code Council. 2024 Ohio Plumbing Code – Chapter 4 Fixtures Faucets and Fixture Fittings
2
Ohio Legislative Service Commission. Ohio Code 4173.02 – Use by Certain Customers of Employee Restrooms
3
Ohio Legislative Service Commission. Ohio Revised Code Chapter 4173 – Retail Establishment Restrooms
4
Ohio Legislative Service Commission. Ohio Revised Code Chapter 3717 – Retail Food Establishment and Food Service Operation
5
UpCodes. Ohio Building Code 2024 – Chapter 11 Accessibility
6
eCFR. 28 CFR Part 85 – Civil Monetary Penalties Inflation Adjustment