The equipment is the easy part. What people get wrong is the count per cluster, the ground under the unit and the route leading to it, and all three are things you decide when you plan the site rather than when you order.
Who has to comply, and with what?
Two parts of the Americans with Disabilities Act reach portable restrooms. Title II covers state and local government programs, which includes a city permitted event on public ground. Title III covers places of public accommodation, which includes most private events open to the public and most commercial premises.
The duty sits with whoever is running the event or the site, not with the rental company. We supply compliant equipment and tell you what the standards require. You control the site layout, and the layout is where compliance is usually won or lost.
Philadelphia adds a local layer through its Fair Practices Ordinance at Chapter 9-1100 of the Philadelphia Code, which prohibits discrimination in public accommodations on the basis of disability and is enforced by the Philadelphia Commission on Human Relations. Treat it as a reason to get the layout right rather than as a separate technical spec.
How many accessible units does an event need?
One per cluster minimum, then 5 percent of each cluster. Per cluster is the phrase that costs organisers money, because the calculation is not done across the whole event.
| Units in one cluster | Accessible units required |
|---|---|
| 1 to 20 | 1 |
| 21 to 40 | 2 |
| 41 to 60 | 3 |
| 61 to 80 | 4 |
| 81 to 100 | 5 |
A race with units at five points along a course needs a compliant unit at every one of those five points. A festival split into four banks of ten across Fairmount Park needs four accessible units, not two. The unit calculator sets the overall totals and ADA accessible porta potty covers the equipment and pricing.
What makes a unit compliant?
An ADA accessible portable toilet is a wheelchair accessible unit built with a level entry and enough internal room to enter, turn, transfer and leave without assistance. The numbers come from the 2010 ADA Standards:
| Requirement | Standard | Section |
|---|---|---|
| Turning space | 60 inch diameter | 304.3.1 |
| Clear floor space | 30 by 48 inches | 305.3 |
| Door clear opening | 32 inches minimum | 404.2.3 |
| Water closet seat height | 17 to 19 inches | 604.4 |
| Grab bars at the water closet | Required | 604.5 |
| Toilet paper dispenser | 7 to 9 inches in front of the water closet | 604.7 |
| Ground surface | Firm, stable, slip resistant | 302.1 |
That puts the cabin near 62 to 65 inches square against roughly 44 by 48 inches for a standard unit. It needs materially more ground, which is why the accessible unit rarely fits in the spot chosen for the standard one.
Does the route to the unit matter?
As much as the unit does. Section 403.5.1 of the 2010 ADA Standards requires an accessible route to have a minimum clear width of 36 inches, and section 302.1 requires the ground surface to be firm, stable and slip resistant along it. A compliant unit at the end of a non compliant route is not compliance.
Philadelphia gives you several reliable ways to break this:
- Belgian block and historic brick footways in Old City and Society Hill, which are attractive and not level
- Rowhouse footways in South Philadelphia that are frequently under 5 feet wide before anything is placed on them
- Kerb height between the parking lane and the pavement, which is a step, and a step is a barrier
- Event lawn at Penn's Landing, which goes soft in rain and stops being firm by the second day
- Park paths in Fairmount Park where the only level ground is the path itself
Mats, a temporary ramp at no steeper than the 1:12 maximum slope in section 405.2, or simply a different placement all fix it. The placement guide covers the ground checks a driver runs on arrival.
What about signage?
Section 216.8 of the 2010 ADA Standards requires that where existing toilet facilities are not accessible, directional signs indicate the location of the nearest accessible one, and section 703.7.2.1 specifies the International Symbol of Accessibility itself.
Practically, that means two things at a large event. Signpost the accessible unit from each bank that does not have one, and do not park the accessible unit at the back of the row where nobody can see it. Put it at the end of the bank nearest the route in.
Do accessible trailers exist?
Yes. An ADA restroom trailer is a towable unit with a ramp or a lift, flushing china and running water, and it is the right answer for a wedding, a corporate event or anything running multiple days.
They ask more of the site. Manufacturer specs on a two stall commonly want a dedicated 20 amp 110 volt circuit and carry around 100 gallons of freshwater, and the ramp needs a level landing at the top and bottom under section 405.7. Compare restroom trailer rental, 2 stall and 4 stall layouts, the luxury option, and trailer pricing before assuming a single accessible cabin covers a guest event.
Do accessible units have to be maintained differently?
The obligation is explicit. 28 CFR 36.211(a) requires a public accommodation to maintain in operable working condition those features of facilities and equipment that are required to be readily accessible to and usable by persons with disabilities.
In practice that means an accessible unit blocked by a stack of chairs, used as a storage cupboard by a vendor, or left unserviced while the standard units are cleaned is a maintenance failure and not a small one. Service it on the same cycle as everything else, which under ANSI/PSAI Z4.3 means interior washing and restocking at each visit rather than emptying alone. See how often units are cleaned.
Does OSHA require accessible units on a jobsite?
No. OSHA 1926.51(c)(1) sets the count at one toilet for 20 or fewer workers and steps up from there, and it says nothing about accessibility. The requirement arrives through a different door the moment a site employs a worker who needs one, and at that point it is not optional.
University and hospital construction in University City is where this comes up most in Philadelphia, because those clients tend to write accessibility into site rules ahead of any legal minimum. Raise it when you price the construction package rather than halfway through. OSHA portable toilet requirements covers the workplace side in full, and permit requirements covers the city process, which here runs through the Department of Public Health.
Get the accessible count right before you order
Send the layout and the number of banks and we will work the 5 percent per cluster figure with you rather than after the fact. Request a quote or contact us. Related pages: event restroom rental, weddings, festivals, handwashing stations, what rental costs, the booking checklist, porta potty rental in Philadelphia, service areas, the FAQ and the home page.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.