Contact Congress about H.R. 900: Sinkhole Mapping Act of 2025

H.R. 900 would create a USGS program to study sinkholes and map higher-risk areas. It also requires a public website and periodic review of the maps, but the work only happens if Congress later provides funding.

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Sinkhole Mapping Act of 2025 is a Senate bill in committee. The latest recorded action: Received in the Senate and Read twice and referred to the Committee on Energy and Natural Resources.

Latest action on H.R. 900: Received in the Senate and Read twice and referred to the Committee on Energy and Natural Resources.

Who this affects: The bill most directly affects the U.S. Geological Survey, which would have to run the program, study sinkhole causes, make the maps, review whether they need updates, and maintain the public website. It would also affect community planners and emergency managers, because the bill is written to give them public risk maps and related information to use in planning and safety decisions. Property owners, builders, and local governments in sinkhole-prone areas could also be affected if they rely on the maps when making development, infrastructure, or risk decisions.

Why this matters: Sinkholes can damage homes, roads, utilities, and other structures, and they can put people at risk. Better mapping could help local officials, builders, and residents make more informed choices about where and how to build, plan infrastructure, and prepare for hazards. The bill could also improve understanding of how weather and water-use changes affect sinkhole risk, but the size of that benefit depends on how the program is funded and carried out. Because the bill only requires periodic review of whether maps need updates, and does not guarantee updates on a fixed schedule, some practical results may vary over time.

Key provisions in H.R. 900

• Tells the U.S. Geological Survey to set up a program specifically to identify sinkhole hazards.
• Requires the agency to study both short-term and long-term causes of sinkholes, including extreme storms, long droughts, aquifer depletion, and major changes in water use.
• Requires maps showing which areas face higher risk of sinkhole formation.
• Says the maps must use existing 3D elevation data collected under the National Landslide Preparedness Act.
• Tells the USGS Director to decide at least once every 5 years whether the sinkhole risk maps should be revised and updated.

How Modern Action helps you take action on H.R. 900

You do not have to start with a blank letter. Modern Action turns the bill, your position, and the relevant congressional context into a message you can edit and send. The goal is to make contacting Congress clear, specific, and useful without forcing you to parse bill text or figure out the right office on your own.

Questions people ask about H.R. 900

What is H.R. 900?

H.R. 900 would create a USGS program to study sinkholes and map higher-risk areas. It also requires a public website and periodic review of the maps, but the work only happens if Congress later provides funding.

How do I support or oppose H.R. 900?

Choose support, oppose, or ask for changes on Modern Action. The action flow drafts the message for you and keeps the wording tied to this bill.

Who should I contact about H.R. 900?

Modern Action uses your location to route the action to the congressional offices relevant to the bill and your representation.

Can Modern Action explain H.R. 900 before I act?

Yes. Modern Action gives you a plain-English summary, current status, and action context before you send anything.