New York’s Mandatory GHG Reporting Program (6 NYCRR Part 253): What Companies Need to Know and How to Prepare

New York has finalized a new Mandatory Greenhouse Gas (GHG) Reporting Program — 6 NYCRR Part 253, establishing one of the most comprehensive state-level emissions disclosure frameworks in the U.S. This regulation marks a significant shift for carbon-intensive sectors, expanding reporting obligations beyond traditional point sources and requiring granular, verifiable, audit-ready emissions data.

For organizations operating in New York or supplying energy, fuels, waste transport, or electricity to the state, the new regulation is not simply a compliance exercise,  it is a call for mature emissions data governance, cross-functional coordination, and a long-term decarbonization strategy.

That’s where SINAI’s approach — sustainability with a plan — becomes your operational advantage.

What Is the Mandatory GHG Reporting Program (6 NYCRR Part 253)?

The program, administered by the New York State Department of Environmental Conservation (DEC), establishes annual mandatory reporting of greenhouse gas emissions from a broad set of entities.

Part 253 integrates technical methods aligned with the EPA’s 40 CFR Part 98 (GHGRP). It requires emissions reporting using 20-year global warming potentials (GWP20) — a shift that increases the relative weight of methane and other short-lived climate pollutants. This places additional pressure on data accuracy, monitoring plans, and internal validation processes.

Who Must Report Under Part 253?

The regulation applies to a wide range of organizations, including:

• Facilities emitting ≥10,000 tCO₂e/year
• Suppliers of natural gas, LNG/CNG, oil products, and coal
• Waste transporters exporting waste to out-of-state landfills or incinerators
• Power entities delivering or importing electricity into New York

A subset of these entities, designated as Large Emission Sources, must also undergo third-party verification.

This broad applicability means that companies across energy, industrial manufacturing, waste, transportation, and utilities sectors need to immediately assess their exposure and data readiness.

Key Deadlines You Can’t Miss

The regulation introduces a clear timeline:

• September 1, 2026: Certain Emissions Monitoring & Measurement Plans due
• December 31, 2026: GHG Monitoring Plans due for Large Emission Sources
• June 1, 2027: First annual Emissions Data Report (covering 2026 data)
• December 1, 2027: First Verification Statements due for Large Emission Sources

Between now and 2027, companies must implement systems capable of collecting, validating, and reporting emissions according to the DEC’s forthcoming NYS e-GGRT platform.

How the Reporting Process Works

To comply with Part 253, companies must prepare:

• GHG Monitoring and Measurement Plans
• Audit-ready datasets aligned with EPA 40 CFR Part 98
• Annual emissions reports submitted through NYS e-GGRT (currently under development)
• Third-party verification (for entities above defined thresholds)

This requires end-to-end visibility into operational activity data, robust calculation methodologies, and seamless cross-departmental collaboration — all areas where legacy spreadsheets or disconnected systems fall short.

Why This Regulation Matters for Carbon-Intensive Sectors

Part 253 signals New York’s expectation that GHG data must be as rigorous as financial data.
This has three major implications:

• Higher scrutiny of methane and lifecycle emissions (GWP20)
• Increased accountability for suppliers and waste transporters
• Greater integration between operational data and corporate sustainability reporting

For many organizations, this means moving away from reactive sustainability and toward a structured, proactive system for data governance and emissions management.

How SINAI Helps You Prepare — Starting Today

To comply with Part 253 and future climate regulations, companies need:

• Accurate, facility-level and supplier-level emissions data
• Monitoring and measurement plans aligned with EPA methodologies
• Transparent audit trails for verification
• A centralized platform to manage sustainability data end-to-end

SINAI ensures your emissions data is audit-ready. Our ESG Reporting capabilities include structured, audit-ready data exports, assurance-ready workflows, and dynamic data visualizations that help internal teams and external auditors quickly understand, validate, and trace emissions calculations.

SINAI’s platform is built for compliance-grade rigor, backed by TÜV Rheinland certification, alignment with the GHG Protocol global standards, and support for ISO 14064-1 and ISO 14064-3 requirements. This ensures every report your team submits is reliable, defensible, and ready for third-party verification — exactly what regulations like Part 253 expect.

If your organization operates in New York or participates in fuel supply, power delivery, or waste transport, now is the time to get ready.

Start Building Your Plan for GHG Reporting Compliance

Sustainability with a plan isn’t a slogan — it’s the foundation companies need to meet fast-evolving regulatory requirements with confidence.

📩 Book a demo with SINAI and learn how we help carbon-intensive sectors measure, engage, report, and reduce emissions with accuracy and strategy.