ADA Porta Potty Rental in Maryland
ADA porta potty rental anywhere in Maryland: at least 5% of each cluster of portable toilets must be accessible, rounded up. Call (888) 417-6737, answered 24/7, and we connect you with a provider that serves your site. 11 of 181 listed places are in the wet band for rain (NOAA normals), where a firm route to the door takes planning.
Updated 2026-10-13
Maryland Conditions That Matter for Accessible Units
Across the 181 Maryland places listed here (NOAA 1991–2020 normals by nearest station, Census TIGER coastline):
- 11 of 181 listed places are in the wet band for rain
- 15 of 152 places with snowfall data average 20+ inches of snow
- 9 of 181 listed places are within 5 km of a shoreline (TIGER)
The 5% rule is federal and applies the same way in every listed place; the ground under the route is what changes from city to city.
Range Across the State
Across the 181 listed Maryland places with this figure (NOAA 1991–2020 normals), the low end is about 36 inches of precipitation a year (Frederick, Hagerstown and 7 other listed places) and the high end about 48 (Green Valley); the middle place is near 43.
By Climate Region
By DOE Building America climate region (county level, PNNL guide), the planning focus shifts: Mixed-Humid (179 places): routes that stay firm after rain and clear of ice in winter; Cold (2 places): routes and ramps cleared of snow and ice.
Most Days With an Inch of Precipitation
Among listed Maryland places with 10,000 or more residents, ranked by NOAA 1991–2020 normals. Frequent heavy rain is the main threat to a firm, accessible route on grass or soil.
- Salisbury: about 12 days a year with 1 inch or more (NOAA 1991–2020 normals, Salisbury Wicomico Regional Airport, MD station)
- Cambridge: about 12 days a year with 1 inch or more (NOAA 1991–2020 normals, Patuxent River NAS, MD station)
- Elkton: about 12 days a year with 1 inch or more (NOAA 1991–2020 normals, Wilmington New Castle Co. Airport, DE station)
- Gaithersburg: about 11 days a year with 1 inch or more (NOAA 1991–2020 normals, Washington DC Dulles Airport, VA station)
- Baltimore: about 11 days a year with 1 inch or more (NOAA 1991–2020 normals, Baltimore Wash Intl. Airport, MD station)
How Many Accessible Units
At least 5% of the units in each cluster must be accessible, rounded up (U.S. Access Board guide to the ADA Standards):
| Units in the cluster | Accessible units (minimum) |
|---|---|
| 1 to 20 | 1 |
| 21 to 40 | 2 |
| 41 to 60 | 3 |
| 61 to 80 | 4 |
Worked example: the PSAI chart gives 38 units for 5,000 people over six hours. In one cluster, 5% of 38 is 1.9, so 2 accessible units; split into two clusters of 19, each needs 1, so 2; split into three clusters of 13, 13 and 12, each needs 1, so 3. Spreading units out can raise the count.
Who Handles Local Rules
For a public event on public land, including where the accessible units and their route will go, the government to ask depends on where the site is. Of the 181 listed Maryland places, 34 are incorporated, 147 are unincorporated Census-designated places. In an incorporated place, ask the city, town, village or borough; in an unincorporated community, ask the county. We don't say whether a permit is needed; each city page names who to ask.
What to Ask For
- How many units are in each cluster (at least 5% accessible, rounded up)
- A firm, level, accessible route to the door
- Ramps for any level change
- Placement next to the main restroom row
ADA Porta Potty Rental by City
Places with 25,000+ residents; see every Maryland location.
Related Rentals
ADA Porta Potty Rental in Maryland: Questions
How do I book ADA porta potties in Maryland?
Call (888) 417-6737, answered 24/7, with the site address, dates and headcount. We connect you with a provider that serves the site, anywhere in Maryland, and the provider confirms units, price, delivery, servicing and pickup.
How many ADA units do I need?
At least 5% of each cluster, rounded up: 1 for 1 to 20 units, 2 for 21 to 40, 3 for 41 to 60. The rule is per cluster, so two clusters of 12 need 2.
My town isn't listed. Can I still call?
Yes. 181 Maryland places have their own page, but we take calls for any address in Maryland; tell us the units you want and the provider confirms what's available for your site.
Can I book for a site near the Maryland border?
Yes. Call the same number; we connect you with a provider that serves the site's address, whether it is in Maryland or in Virginia.
Don't know where to start?
Call now and tell us about your event or job site. We will help you work out the units you need and connect you with a provider that serves your location.
(888) 417-6737Phones answered 24 hours a day, 7 days a week.