MA S549

Adds definitions for "Nature Services" and "Reforestation" to Massachusetts climate law (Chapter 21N) and establishes a state policy to prevent degradation and loss of natural and working lands, freshwater wetlands, and coastal wetlands

Creates a voluntary "Natural and Working Lands Friendly Communities" program allowing municipalities to opt in by adopting certain bylaws, including natural resource protection zoning (required) plus options like tree retention ordinances, right-to-farm bylaws, fertilizer restrictions, and groundwater protection regulations

Participating municipalities receive financial incentives including grants, loans, technical assistance, higher reimbursement rates for state-owned land, preference in existing grant programs, and per-parcel payments for Chapter 61 protected lands

Prohibits state funds and federal grants from being used to permanently convert natural and working lands or wetlands when feasible alternatives exist

Requires the Environmental Policy Act office to establish review thresholds by July 1, 2026 for projects converting natural lands, and to develop methodologies by July 1, 2025 for quantifying greenhouse gas emissions from land clearing and farmland development