New York ECL Amendments 2026

June 26, 2026 / Industry News

Stay Ahead of New York’s Evolving Environmental Review Requirements

The 2026 amendments to New York’s Environmental Conservation Law (ECL) introduce significant changes to SEQRA timelines, exemptions, and procedures. Understanding how these updates apply to your projects is critical. P.W. Grosser Consulting’s environmental regulatory team is ready to help you navigate these changes, assess project eligibility for new exemptions, and keep your approvals on track. Contact us today to discuss how these amendments may affect your upcoming work.

N.Y. Environmental Conservation Law – Modifications to §8-0105, §8-0109, and §8-0111

On May 27, 2026, amendments to Article 8 of the NY Environmental Conservation Law were signed into law by NY Governor Hochul as part of the Fiscal Year 2027 budget. These amendments are in furtherance to the SEQRA amendments that went into effect on June 12, 2026, with new EAFs, new considerations of climate change and disadvantaged communities, and amendments to the Type II list, among other things.

New Definitions

Amendments include definitions for:

Previously disturbed sites
Small community water system
Public school facilities

Note: Important for Long Island clients is that the definition of previously disturbed sites excludes a developed site that is used for agricultural purposes (or historically used), or a site located within a FEMA designated 100-year floodplain, special flood hazard area, and/ or coastal erosion hazard area. See N.Y. Environmental Conservation Law Section 8-0105 – Definitions (2026)

New Timelines for Projects requiring EIS’s

The new EIS timelines establish maximum timeframes for: (1) when to determine if an EIS is needed (one year from lead agency establishment); and (2) the time in which an agency shall complete an EIS (2 years from the issuance of the Positive Declaration). Regarding the 2-year timeframe for EIS completion, the amendments give discretion to the lead agency to extend these timelines when project changes occur after the issuance of a Final Scope, when actions occur that could not be reasonably anticipated during scoping, when there is a failure of an applicant to provide necessary information, or if there are delays beyond the control of an agency or applicant. See: N.Y. Environmental Conservation Law Section 8-0109 – Preparation of environmental impact statement (2026)

New Projects Exempt from SEQRA Review

Amendments identify select projects that are exempt from review, including:

Construction of housing in cities, towns or villages with one million or more residents, but only if such a project (1) will be connected to existing water & sewer systems at commencement of habitation, (2) will be located at a previously disturbed site, (3) will include no more than 50,000 square feet of non-residential and/or non-industrial use,(4) will contain a maximum of 250-500 dwelling units (the 500 unit limit applies only where zoning allows building heights to exceed 45 feet or zoning does not set forth a maximum building height), (5) will not be located in an area zoned only for industrial use, and (6) will not include construction of only individual single-family residences on parcels of one-half acre or larger.
Construction of housing in cities, towns or villages with populations below one million residents, but only if such a project (1) will be connected to existing water and sewer systems at commencement of habitation, (2) will be located at a previously disturbed site, (3) will include no more than 20%, by gross floor area, of commercial, retail, community, or other non-industrial/non-retail use, (4) will contain a maximum of 20 (in communities without zoning), 100 dwelling units (where zoning is in place) or 300 dwelling units (where zoning is in place and is a defined urban area) and (5) will not include construction of only individual single-family residences on parcels of one acre or larger.
Construction located at a previously disturbed site for public parks without performance centers, athletic stadiums, or other venues for mass gatherings.
Construction located at a previously disturbed site for multi-use bicycle and pedestrian trails.
Construction of public school facilities in cities with populations of one million or more, provided they will be connected to existing water and sewer systems at the commencement of use.
Water and wastewater infrastructure projects involving (1) municipal water or wastewater infrastructure replacement, rehabilitation or reconstruction in kind and on the same site, (2) existing small community water system replacement, rehabilitation, upgrade or reconstruction, or (3) provision of sewer service to a disadvantaged community where one or more inadequate sewage treatment systems have been determined to not require a permit or approval by the NYSDEC.
Retrofit of an existing structure and appurtenant areas to incorporate green infrastructure

See subsection 5-a in N.Y. Environmental Conservation Law Section 8-0111 – Coordination of reporting (2026)

Other Requirements still apply to Exempt Projects

Amendments identifying projects exempt from SEQRA do not supersede, limit, modify or affect any authorizations, requirements or procedures of laws or regulations (zoning, land use/site plan review, traffic studies, historic preservation, disadvantaged communities, water quality, air quality, wetlands, endangered species, etc.). See: N.Y. Environmental Conservation Law Section 8-0111 – Coordination of reporting (2026)

Establishes Timeline to determine whether a Project is Qualifying and Exempt

Amendments require the agency to determine whether the whole action qualifies as exempt (120 days plus another 30 days with exceptions). If time period is exceeded, SEQR amendments allow an applicant to file an Article 78 proceeding. See: N.Y. Environmental Conservation Law Section 8-0111 – Coordination of reporting (2026)

Establishes Statute of Limitations for Commence a Proceeding

SEQRA amendments now clarify a Statute of Limitations on the time to commence a proceeding to review a Determination, which will run “when the agency determination to approve or disapprove the action becomes final and binding” on a petitioner or the petitioner’s representative in law or fact. See: N.Y. Environmental Conservation Law Section 8-0111 – Coordination of reporting (2026)

Implementing Regulations of SEQRA

It does not appear the SEQRA regulations at 6 NYCRR Part 617, authorized under ECL §8-0113, 3-0301(1)(b), (2)(m), have not been updated with the most recent changes to ECL §§8-0105, 0109 and 0111. As of now, only the amendments effective June 12, 2026, are available at: ExpressTerms- State Environmental Quality Review Part 617.1-617.20

Questions About How These Changes Affect Your Projects?

P.W. Grosser Consulting’s environmental regulatory specialists are available to review your project portfolio, evaluate exemption eligibility under the new SEQRA framework, and guide you through updated procedural requirements. Whether you are managing a housing development, infrastructure upgrade, or public space project, our team provides the technical expertise and regulatory insight you need to move forward with confidence. Reach out today to schedule a consultation.