New York regulations

9 NYCRR 574.4

Executive Department

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Wastewater treatment system standards

Wastewater treatment system standards

Compiled text through Sep 15, 2021

Register checked through Jul 29, 2026

No later Register activity identified in this check.

Dates and status
Compiling agency
Executive Department
Text status
Source receipt
Compiled text through
Sep 15, 2021
Register checked through
July 29, 2026/Vol. XLVIII, Issue 30 (2026-07-29)
Activity status
No later Register activity identified in this check.
Source snapshot
Jun 6, 2026

Unless otherwise provided in an agency permit, wastewater treatment systems associated with a project which are designed to treat less than 1,000 gallons of wastewater per day shall be designed, installed and maintained in accordance with the standards set forth in “Wastewater Treatment Standards – Residential Onsite Systems”, Appendix 75-A, Title 10, of the Official Compilation of Codes, Rules and Regulations of the State of New York, and with the additional standards set forth in Appendix Q-4 of this Title.

State Register activity

No Register activity identified in this check.Register checked through July 29, 2026/Vol. XLVIII, Issue 30 (2026-07-29).

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