The District of Columbia has achieved progress toward statewide governance and policy for adaptation, though its unique status as a federal district influences how that work gets done. The primary climate hazards facing DC are extreme heat, flooding, and increasingly variable precipitation patterns. In 2020, DC passed the Office of Resilience and Recovery Establishment Act of 2020, which created an Office of Resilience and Recovery (ORR) to lead district adaptation efforts. In addition to the ORR, the 2020 Act also established a Chief Resilience Officer (CRO) position to lead and direct the ORR in implementing resilience plans. Volunteer programs, such as DC Snow Heroes and Heat Ambassadors, run through the Mayor’s Office on Volunteerism and Partnerships, engage DC residents and provide them opportunities to help their communities prepare for and adapt to climate hazards. DC’s planning documents and zoning regulations make up the core of the city’s resilience approach: Climate Ready DC (2016) is the District's guiding resilience plan, with a forthcoming Climate Ready DC 2.0 set to update both it and the 2019 Resilient DC plan, while the 2022 Keep Cool DC strategy targets extreme heat specifically and Sustainable DC 2.0 (2019) ties building code updates to broader resilience goals. The overview below provides a more detailed summary of DC’s key climate-related risks, the governance framework for overseeing adaptation work at the state level, and central laws and guidelines affecting how adaptation planning, investments, and funding are carried out in the District. 

DC’s Climate Vulnerability and Risk Profile

Washington, DC (the District of Columbia), the capital city and federal district of the United States, has a humid subtropical climate. Summers are generally very hot and humid, while winters are mild.^{See footnote 1} The city is bordered by the Potomac River to the southwest, and the Anacostia River runs through the southeastern portion of the city. The Anacostia and Rock Creek are both tributaries of the Potomac.^{See footnote 2} Rock Creek Park runs north-south through the western part of the District, providing ample tree cover and reducing extreme heat impacts (as well as the urban heat island effect).^{See footnote 3}

In recent years, DC has experienced both ends of weather extremes, swinging from long, humid heatwaves in the summer to periods of record-breaking cold, snow, and ice in the winter.^{See footnote 4} Overall, the city is warming^{See footnote 5} and at a rate higher than the surrounding region.^{See footnote 6} Heat impacts are felt differently across the district—variations in tree cover and building concentration have led to up to 16 degrees F difference across DC.^{See footnote 7} Within DC, Wards 5, 7, and 8 have seen the highest vulnerability to heat-related illnesses, while neighborhoods in Wards 2 and 3 (with more tree cover) have cooler temperatures on average.^{See footnote 8} Heat waves (periods of extreme heat that last more than three days) are expected to become more common in the summer season.^{See footnote 9} The number of heat emergency days through 2100 in DC could potentially double (or more) compared to the early 2000’s.^{See footnote 10} Increased flooding frequency due to sea-level rise, precipitation, and regional land subsidence are also impacting the District.^{See footnote 11} Coastal flood risk is considered moderate, while inland flood risk is high. Hurricane and tornado risk are also relatively high.^{See footnote 12} Increased storm intensity has pushed flooding further inland in DC.^{See footnote 13}  Precipitation patterns are changing; precipitation has become more frequent (especially in the form of rain) and intense during cooler months, but it has become less frequent (though more intense) during the summer. However, rainy days are hitting the city harder than before as precipitation has become more intense. DC is part of the region of the US expected to see the greatest precipitation increases due to climate change and increased storminess (in the form of hurricanes, nor’easters, and rainstorms).^{See footnote 14}  At the same time, drought is becoming more prevalent from summer through fall, which can lead to worse flooding due to heavy rains and dry soil.^{See footnote 15} The DC Flood Risk Tool shows that Southeast and Northeast DC (particularly the Anacostia neighborhood) are at greater risk for flooding, due to their proximity to the Anacostia River. Flooding can also be an issue along Rock Creek.^{See footnote 16} The Ivy City neighborhood has its own resilience strategy because of the area’s particular heat and flood risk.^{See footnote 17} Other climate impacts to the District include derechos (large storm cells), microbursts (small, concentrated thunderstorms), and wildfire smoke from nearby fires.^{See footnote 18 See footnote 19}

Adaptation Governance in DC

The District’s adaptation governance is expansive, including the establishment of new government offices, the creation of expert groups, and administration of volunteer programs that allow residents to contribute to climate resilience work. The District’s unique governance structure also influences its programs and laws. As a district without statehood, DC functions similarly to the 50 states, but lacks the autonomy afforded to states to independently govern their own affairs, as all laws passed by the DC legislature must be sent to Congress for approval, including the annual budget.^{See footnote 20}

DC Homeland Security and Emergency Management Agency

The DC Homeland Security and Emergency Management Agency (HSEMA) leads preparation, mitigation, and response for the city. Since 2023, DC has a Federal Emergency Management Agency (FEMA) -approved State Hazard Mitigation Plan in the form of several HSEMA documents and tools, including the 2022 Risk Assessment, Mitigation Operations Plan, Hazard Identification and Risk Assessment, and more.^{See footnote 21} As part of FEMA Region 3, HSEMA serves as the State Administrative Agency (SAA) for FEMA-funded preparedness grant dispersal. All grants are awarded in alignment with the District of Columbia Homeland Security and Emergency Management Strategy and the National Capital Region Homeland Security Strategic Plan.^{See footnote 22} The US Army Corps of Engineers (USACE) Regulatory District covering DC is the Baltimore District. Projects benefiting DC’s climate adaptation from the Baltimore District includes the DC Levee System and 17th Street Closure^{See footnote 23} and the Middle Potomac Coastal Study.^{See footnote 24} Notably, the Washington Aqueduct Corps of Engineers is an arm of the Baltimore District that provides wholesale water to DC Water and other regional water suppliers.^{See footnote 25} DC HSEMA is not a regular partner with USACE on these projects and other adaptation projects, due to the federal nature of the District.

Office of Resilience and Recovery and Chief Resilience Officer

DC’s Office of Resilience and Recovery is the government agency spearheading the implementation of adaptation provision and practices in the District. The DC Council passed the Office of Resilience and Recovery Establishment Act of 2020 to establish both the Office of Resilience and Recovery (ORR) and the position of Chief Resilience Officer (CRO). The CRO is charged with leading the ORR’s efforts to strategize and implement DC’s resilience action plans.^{See footnote 26} The ORR must develop short- and long-term plans to improve the resilience of DC’s “economy, communities, infrastructure, and natural resources in response to shocks and chronic stresses,” assess resilience implementation, and assist other District agencies with implementing resilience measures.^{See footnote 27}

Commission on Climate Change and Resiliency 

The Commission on Climate Change and Resiliency Establishment Act of 2016 is charged to respond to the increasing impacts of climate change in the District. This group of 16 experts and stakeholders must identify best practices in terms of resilience, conduct vulnerability assessments, and recommend legislative and regulatory solutions.^{See footnote 28} These recommendations are released as regular reports every few years.^{See footnote 29} The Act also established the Climate Change and Resilience Fund, managed by the DC Department of Energy and Environment (DOEE) on behalf of the Commission, to assist the Commission in its functions and duties.^{See footnote 30}

SERVE DC

The Mayor’s Office on Volunteerism and Partnerships administer two volunteer programs that allow District residents to assist during times of extreme weather conditions: Heat Ambassadors and DC Snow Heroes. As one of the DC government’s priorities is combatting extreme heat effects, the Heat Ambassadors program provides volunteers with community emergency response training (CERT) and matches volunteers with community members to contact during an extreme heat event. This results in fewer heat-related deaths or injuries among vulnerable groups like the elderly. The Snow Heroes program operates similarly, as volunteers are matched with senior or disabled residents for free snow removal within 24 hours of the end of a winter event (four or more inches of snow). 

Climate Data

Climate data and tools are developed and maintained primarily by DOEE and HSEMA. DOEE has a Heat Sensitivity Exposure Index website through Open Data DC. The map uses both heat exposure and heat sensitivity to visualize heat risk in the District.^{See footnote 31} DOEE also provides maps of flood risk across the city using FEMA’s Flood Insurance Rate Map (FIRM). The maps display floodplain boundaries, base flood elevation requirements, and measures taken for flood mitigation.^{See footnote 32} Drought conditions are reported for DC monthly from spring through fall by the Metropolitan Washington Council of Governments (MWCOG) in Regional Drought and Water Supply Status reports.^{See footnote 33} HSEMA also runs the Ready DC program that helps residents prepare for a range of hazards, including climate impacts. Residents can plug in their Ward or address to determine what risks they might face, tailored to their specific area.^{See footnote 34} 

Adaptation Law and Policy in DC

While the ORR is leading DC’s climate adaptation implementation, the Climate Ready DC plan is the city’s guiding document for adaptation recommendations to increase climate resilience. These responsibilities often intersect. For instance, the Commission for Climate Change and Resiliency must consider DC agency plans, such as Climate Ready DC, in the course of its assessments and is required to submit a triennial report outlining progress, recommendations, and action items to reduce DC’s vulnerability.^{See footnote 35} ORR must also publish an annual progress report on the status of sustainability and resilience planning in the District.^{See footnote 36} 

Resilient Design and Siting Requirements

The District has many regulations mandating resilience in buildings and infrastructure, as well as laws in place to protect residents and property from the impacts of increased flooding. 

DC’s Resilient Design 

The Climate Ready DC plan is the District’s primary guide for increasing climate resilience. As part of this plan, Climate Ready DC: Resilient Design Guidelines was developed as “a practical reference for District of Columbia agencies, engineers, architects, planners, and stakeholders who are responsible for, and/or have an influence on, planning design, or construction projects in the District” and provides them with voluntary guidance and recommends best practices for supporting resilient outcomes. The supplement includes sections detailing the need for resilient design, the District’s two primary hazards (flooding and extreme heat), methodologies for flooding and heat evaluations, and strategies for enhancing the resilience of buildings. 

In an effort to increase the quality and quantity of the District’s urban environment to improve air quality and reduce stormwater runoff and the urban heat island effect, the Green Area Ratio (GAR) was adopted into DC’s zoning regulations in 2013.^{See footnote 37} This sustainability zoning regulation requires that all new buildings must comply with GAR, as must any buildings undergoing major renovations costing more than 100% of the building’s value in a year-long period.^{See footnote 38} A building is compliant if it reaches a certain score, calculated by the various green design choices made, such as increasing the tree canopy, using vegetated roofing, and incorporating native plant species.^{See footnote 39} Through these measures, the District uses GAR to promote attractive and environmentally functional landscapes.

Floodplain Management

In response to the increasing threat of flooding, DC has laws and regulations designed to protect residents and prevent property damage. The Director of DOEE (or their designee) is the Floodplain Administrator, overseeing implementation of flood-prevention regulations.^{See footnote 40}  

In 2021, the Office of the City Administrator established the ad hoc Flood Task Force to produce a report identifying “policies and projects to bolster flood readiness” and equitably manage risk of flood damage and the related economic hardship. Its 2023 final report proposed upgrades to DC’s flood maps to account for climate change, flood resilient upgrades to homes, neighborhood-scale flood infrastructure installation, and improving permitting processes within the government.^{See footnote 41} These recommendations require further approval, review, and funding, and act as a guide to implementation of future policy decisions. 

For example, the Flood Hazard Rules (2025) included in the DC Municipal Regulations (DCMR) are a set of minimum requirements that aim to regulate development in floodplains, mitigate flood impacts, and prevent increases in flooding events.^{See footnote 42 See footnote 43} The rules include mandates on design flood elevations, residential structure, critical facilities, and dry floodproofing requirements. They mandate that residential and non-residential structures be elevated at least 1.5 feet above the base flood elevation (BFE), and that electrical panels be elevated at least 3 feet above the BFE. Manufactured homes must be set back from watercourses at least 50 feet if they are in special flood hazard areas.

The District’s zoning regulations also include floodplain standards. The DCMR outlines waterfront regulations for areas proximate to the Potomac River, Anacostia River, and Washington Channel, with the purpose of protecting natural resources and establishing “use restrictions in the 100-year floodplain.”^{See footnote 44 See footnote 45} Included in the restrictions on uses within the 100-year floodplain are prohibitions on residential buildings housing one or two units, daycare facilities, emergency shelters, and hospitals.^{See footnote 46} General waterfront regulations require that buildings be set back at least 75 feet from the water, and further regulations state that no new buildings may be built within the 500-year floodplain. 

In addition to these regulations, DC’s Building Code (2017) requires that buildings and structures must be elevated at least 2 feet above the base flood elevation or elevated to the 500-year flood level, whichever is higher.^{See footnote 47} This update to the building code brought the city partially in line with the American Society of Civil Engineers (ASCE) 24-14 standard, Flood Resistant Design and Construction.^{See footnote 48}

Statewide Adaptation Planning and Technical Assistance

Climate Ready DC is the District’s principal climate resilience plan. Developed primarily by DOEE in 2016, the plan assesses future climate risks and develops climate scenarios for each threat, including rising temperatures, flooding, and sea-level rise, while aiming to reduce greenhouse gas emissions. The plan defines climate change adaptation as “being prepared for a changing climate by taking action to reduce the potential impacts of climate change to people, buildings, and infrastructure like water systems, roads and electricity, and natural gas networks.” It outlines climate adaptation strategies for specific sectors, such as transportation, buildings, and utilities. Importantly, the adaptation strategies for governance aim to establish systems, policies, and procedures for monitoring and evaluation to ensure successful implementation of the plan. 

Resilient DC is a collaborative plan between the District and 100 Resilient Cities (now the Resilient Cities Network),^{See footnote 49}created in 2019, to increase urban resilience, defined in the plan as “the capacity of individuals, communities, institutions, businesses, and systems within a city to survive, adapt, and thrive no matter what kinds of chronic stresses and acute shocks they experience.” Importantly, this differs from climate resilience and encompasses environmental, economic, and infrastructural stressors. However, one of the four major goals of the plan is “Climate Action,” which prepares for the impacts of climate change by focusing “on implementation and measures to institutionalize climate action.” Initiatives include updating building regulations and land use laws, measuring risk and tracking adaptation progress, improving individual and community climate resilience, and investing in climate action. Progress on Resilient DC was last assessed in a 2022 report. 

DOEE is currently working on Climate Ready DC 2.0, which will serve as an update to both the original 2016 Climate Ready DC plan and the 2019 Resilient DC plan. 

In line with Climate Ready DC concerns of rising temperatures, the District released its 2022 extreme heat adaptation strategy Keep Cool DC, focused on cooling down the city and keeping residents safe. The plan warns of rising temperatures due to climate change—specifically the urban heat island effect—and outlines the dangers associated with extreme heat. To cool down the city, the plan proposes increasing cool spaces, heat-resilient design, and tree equity. To keep residents safe, the plan proposes the improvement of cooling centers, which are activated when the heat index reaches 95 degrees, expanding community outreach, increasing the accessibility of air conditioning for residents who do not have or cannot afford to run air conditioning, and ensuring reliable power to prevent blackouts. 

Sustainable DC 2.0 is the 2019 update to the District’s first Sustainable DC plan, developed in 2013; it focuses on making DC more resilient to climate change through the updating of building codes to prepare neighborhoods for climate change risks. Among the goals established by Sustainable DC 2.0 is the full implementation of the Climate Ready DC plan. The plan also suggests an annual progress report, with the 2019 plan reporting 27% completion of the 2013 plan. 

This summary aims to highlight the most important adaptation and resilience efforts underway in the District of Columbia, but it is not exhaustive. Other adaptation and resilience efforts may be led by other state agencies, localities, and private partners within the state. Source documents and additional resources, many of which are housed in the Adaptation Clearinghouse, are highlighted below.

This research was last updated on October 20, 2026.