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Access Pipeline Maps and Information
What is the difference between PIMMA and the Public Map Viewer?
Apply for PIMMA access
Launch the Public Map Viewer
Download nationwide PDF map
Find who's operating pipelines in your area (Operator Directory)
Download Offshore Pipeline Operator Information
Download summary of active pipeline mileage by county
Resources for government officials handout
View pipeline operator information from PHMSA

Request GIS Data
What GIS data may I access?
Request Pipeline GIS data
Download Coastal Ecological Unusually Sensitive Area (USA) GIS data
Download Population and Commercially Navigable Waterway High Consequence Area (HCA) GIS data
Looking for pipeline GIS data?
What GIS data may I access?
Request Pipeline GIS data

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The National Pipeline Mapping System contains information about hazardous liquid and gas transmission pipelines under the jurisdiction of US DOT PHMSA.
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