About Us

COG is the one place in metropolitan Washington that regularly brings leaders together to develop solutions to the region's major challenges. COG prepares plans enabling the region to receive federal funding, provides members with research and data to inform decision-making, and offers a wide range of programs, including commuter services, cooperative purchasing, technical assistance and grants, and public outreach campaigns.

Transportation

Through the National Capital Region Transportation Planning Board (TPB), area officials, planners, and engineers ensure a well-managed and maintained transportation system. The TPB, which is staffed by COG, conducts the federally mandated transportation planning process for the region and ensures the uninterrupted flow of federal transportation funds that area jurisdictions receive.

Environment

COG's work engages leaders in various environmental fields from water quality experts to climate scientists. Together, they are advancing regional efforts to restore local waterways, improve air quality, reduce greenhouse gas emissions and address climate change, promote recycling, and enhance and preserve green space and agriculture.

Community & Economy

Area officials and experts, including planning and housing directors and child welfare and health officials, work together with their counterparts at COG to help shape stronger communities throughout the region.

Homeland Security & Public Safety

COG brings police chiefs, fire chiefs, emergency managers, and other leaders together as part of its work to strengthen regional public safety coordination, homeland security planning, and emergency communication.

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Publications

Greenhouse Gas Emissions Inventories Methodology Guide
Mar 9, 2026
Publications, Other Documents

COG FARM Local Food Procurement Challenge Factsheet
Mar 10, 2026
The Metropolitan Washington Council of Governments (COG) Food and Agriculture Regional Member (FARM) Policy Committee launched the Local Food Procurement Challenge (“the Challenge”) on December 5th, 2025. The Challenge invites member jurisdictions to strategically shift a portion of their existing food budgets toward locally and regionally grown and produced foods, advancing economic resilience, food security, environmental stewardship, and regional agricultural vitality.
Publications

Community-Wide Greenhouse Gas Emissions Inventory Summaries
Mar 18, 2026
COG completes greenhouse gas (GHG) community-scale inventories for all 24 local government members, northern Virginia, and metropolitan Washington. These fact sheets present GHG inventory results between 2005 and 2023.
Publications

Commercial Construction Indicators Report
Apr 6, 2026
This report provides information on the number, location, structure type, and size of new commercial development projects in metropolitan Washington.

Results: 335 Records found.

Documents

Publications

Greenhouse Gas Emissions Inventories Methodology Guide

COG FARM Local Food Procurement Challenge Factsheet

Community-Wide Greenhouse Gas Emissions Inventory Summaries

Commercial Construction Indicators Report