Are Composting Toilets Legal in Arkansas? (2026)
Yes — Composting Toilets are legal in Arkansas as of 2026.
Quick Answer
Composting toilets are explicitly permitted in Arkansas under state plumbing or health codes. No significant legislative changes have occurred since the last update to the Onsite Wastewater Systems regulations in September 2024.
What the Law Says
Permits the use and sale of composting toilets in Arkansas provided they meet state health department requirements, including NSF 41 certification. Requires proper disposal of composted material either by onsite burial or sanitary landfill.
— 14 CAR § 21-807
| Category | Details |
|---|---|
| State Plumbing Code | Legal; NSF 41 certified units typically required |
| Permit Requirements | Legal to sell and install |
| Code Violation Penalties | Must meet state health department requirements. |
| Pending Legislation | None known |
No significant legislative changes have occurred since the last update to the Onsite Wastewater Systems regulations in September 2024.
Enforcement Reality
The Arkansas Department of Health is the primary enforcement agency. Enforcement is strict, requiring pre-manufactured, state-authorized composting toilets and proper disposal of composted material.
The most common violation is the use of non-approved or homemade composting toilets. Another frequent mistake is the improper disposal of the composted material, which must be buried onsite or taken to a sanitary landfill.
Local Exceptions
None identified. State law applies uniformly across Arkansas. Local ordinances may still vary — check with your city or county government for any additional rules.
Bottom Line
Composting Toilets are legal in Arkansas. You can installing a composting toilet without violating state law, though federal rules and local ordinances may still apply. Always verify current law before acting.
Arkansas vs. the Rest of the US
Across the US, installing a composting toilet is fully legal in 20 states, restricted in 30, and illegal in 0. Arkansas falls in the LEGAL category.
View the full 50-state map →Reviewed by cross-referencing the cited state statute against current legislative databases and regulatory publications.
Sources & Verification
This page was reviewed by Ethan Harper by comparing the legal status against the cited state statute. AllowedHere is an informational resource and does not provide legal advice. Consult a licensed attorney for guidance specific to your situation.
Comprehensive Arkansas Legal Guides
Explore all related legal topics in Arkansas — statutes, penalties, and enforcement in one place.