Resources

Now is the Time for Communities to Update to the Massachusetts Stretch Code: A Deep Dive into the 10th Edition Base Code and the Stretch Code

This brief is a deep dive into the Massachusetts Stretch Code and 10th Edition Base Code, which is based on the 2021 International Energy Conservation Code. The Base Code applies to new construction…

NEEP Public Comments on Tentative Implementation Order for Phase V of PA Act 129

NEEP public comments on Tentative Implementation Order for Phase V of PA Act 129 as submitted via Docket Number M-2025-3052826 e-file. NEEP's comments are intended to provide technical assistance and…

NEEP Testimony on the 2025 NYS Energy Conservation Construction Code at the Meeting for the New York State Fire Prevention and Building Code Council

NEEP testimony on the 2025 NYS Energy Conservation Construction Code presented at the Meeting for the New York State Fire Prevention and Building Code Council. NEEP's comments are intended to provide…

Off-site Construction and Passive House Standards for Affordable Housing: A Case Study Review

Shortfalls in subsidized affordable housing have expanded across the U.S. due in part to rising construction costs that limit developers’ ability to fund projects and reduce the impact of affordable…

Energy Codes and Affordability

Energy codes play a critical role in improving the efficiency of residential and commercial buildings. They ensure that new construction meets minimum energy performance standards, which reduces…

Code Enforcement Workforce Gap Analysis: New England and Mid-Atlantic Region

Building code enforcement professionals are responsible for ensuring compliance with all local building codes. Building codes establish health, welfare and safety standards, and ensure safe,…

NEEP Public Comments on MassSave Plan 2025-2027

NEEP public comments on the Mass Save 2025-2027 Energy Efficiency and Decarbonization Plan presented to the Department of Public Utilities. NEEP's comments are intended to provide technical…

Residential Heat Pump Efficiency Rating Representativeness Project: Phase Two

This report details the second phase of the residential heat pump efficiency rating representativeness study conducted by DNV and UNL (the research team) for Northeast Energy Efficiency Partnerships…

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