Alliance members are working to achieve the Paris Agreement’s goal of keeping temperature increases below 1.5 degrees Celsius by reducing emissions, accelerating action, centering equity, and tracking progress. 

Explore Maryland's policies and actions across the Alliance's 10 key policy areas. Numbers presented below only reflect the number of policies in this database and thus may not reflect all climate policies pursued.

maryland

GHG Targets + Governance

Just Transition + Equity

Industry

Pricing Carbon + Valuing Damages

Electricity

Transportation

Resilience

Natural + Working Lands

Climate Finance

Buildings

total

Executive Order 01.01.2025.27: Building an Affordable and Reliable Energy Future

Governor Moore signed the "Building an Affordable and Reliable Energy Future," executive order, directing state agencies to take immediate action to lower energy costs, improve grid reliability, and streamline permitting. 

The order establishes an Energy Subcabinet to oversee implementation of the order, as well as an Energy Advisory Council to provide external stakeholder support to the Subcabinet. In addition, the order directs the Maryland Energy Administration to petition the Public Service Commission to review budget billing programs and customer assistance programs and to implement a regulatory strategy to prioritize flexible and affordable grid solutions and non-wires alternatives.

The order further directs the Maryland Energy Administration to petition the Public Service Commission to require transmission owners to consider advanced transmission technologies (ATTs). Finally, the order establishes the Maryland Energy Site-Readiness Initiative to help accelerate deployment of new energy systems and attract investment to priority sites.

HB 128: Climate Change Adaptation and Mitigation: Study on the Total Assessed Cost of Greenhouse Gas Emissions

This legislation requires the Comptroller, in coordination with the Department of the Environment and the Department of Commerce, to conduct a study assessing the total cost of greenhouse gas emissions in the State's climate change. Then, report findings by December 1, 2026. 

Maryland ACCII/ACT Workgroup Final Report

Established via Executive Order on April 4, 2025 “Ensuring Success with Advanced Clean Cars II and
Advanced Clean Trucks in Maryland”, the Governor’s Workgroup on Advanced Clean Cars II (ACCII)/
Advanced Clean Trucks (ACT) met between July 2025 and December 2025.

In the Executive Order, Governor Moore stated that Maryland remains committed to successful
implementation of the State’s clean car and clean trucks programs, and would establish this Workgroup
to study and make recommendations on how ACCII and ACT can be successfully implemented in
Maryland.

The federal landscape has shifted since the establishment of this Workgroup. On June 12, 2025,
President Trump signed into law a Joint Resolution under the Congressional Review Act which withdrew
California’s waiver under the Federal Clean Air Act for ACCII, which had been approved by the
Environmental Protection Agency (EPA) in December 2024. Because Maryland is one of the States that
participated in California’s ACCII waiver, Maryland’s ACCII and ACT programs were also impacted. This
matter is currently being litigated.

Furthermore, there have been shifting dynamics on a federal level on the National Electric Vehicle
Infrastructure Program (NEVI). NEVI funds had been frozen for months in the early part of 2025, which
was overturned on June 15, 2025, after 17 states, including Maryland, filed litigation.
Over the course of six months, the Workgroup studied and discussed issues around federal and state
electric vehicle incentives, charging infrastructure, infrastructure readiness, and regulatory policy and
communications strategies.

This final report includes a synthesis of more than 30 recommendations, reflecting all of the
recommendations that were considered by the Workgroup. The recommendations were developed in
coordination with all members of the Workgroup on how Maryland could move forward on ACCII/ACT, but
do not represent official positions of the Moore-Miller Administration.

Heating Fuel Provider Reporting Program

The Maryland Department of the Environment finalized regulations for the Maryland Heating Fuel Provider Reporting Program (COMAR Chapter 26.11.44). Under the program, heating fuel providers must collect fuel delivery data beginning in January 2026 and must submit annual reports to the Department of the Environment beginning April 1, 2027. Data collected via the program is intended to inform the state's greenhouse gas inventory and the development of Clean Heat Rules. 

Maryland Heating Fuel Provider Reporting Program

buildings

HB 1466: Land Use and Real Property - Accessory Dwelling Units - Requirements and Prohibitions

This bill establishes a State policy to promote and encourage the creation of accessory
dwelling units (ADUs) on land with a single-family detached dwelling unit as the primary
dwelling unit, to meet housing needs. The bill also (1) requires adoption of specified local
laws authorizing ADUs; (2) prohibits a restriction on use of a property from unreasonably
limiting the ability of an owner to develop or offer for rent an ADU; and (3) authorizes
homeowners associations (HOAs) to treat an ADU as a separate lot for purposes of voting
and assessments.


1. requires adoption of specified local laws authorizing ADUs.
2. prohibits a restriction on use of a property from unreasonably limiting the ability of an owner to develop or offer for rent an ADU.
3. authorizes homeowners associations (HOAs) to treat an ADU as a separate lot for purposes of voting and assessments.