The Pipeline and Hazardous Materials Safety Administration (PHMSA) Pipeline Safety Regions dataset was compiled on October 04, 2022 from the Pipeline and Hazardous Materials Safety Administration (PHMSA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). PHMSA’s Office of Pipeline Safety (OPS) is responsible for protecting people and the environment from pipeline failures by analyzing pipeline safety and accident data; evaluating which safety standards need improvement and where new rulemakings are needed; setting and enforcing regulations and standards for the design, construction, operation, maintenance or abandonment of pipelines by pipeline companies; educating operators, states and communities on how to keep pipelines safe; facilitating research and development into better pipeline technologies; training state and federal pipeline inspectors; and administering grants to states and localities for pipeline inspections, damage prevention and emergency response. The PHMSA Pipeline Safety Regions layer contains polygon features representing each of the five regions, Central, Eastern, Southern, Southwest, and Western, that make up PHMSA’s Office of Pipeline Safety. Each region office is charged with ensuring the safe, reliable, and environmentally sound operation of the nation's pipeline infrastructure. Despite regional divisions the jurisdiction of PHMSA staff is nationwide and not limited to their regional area of responsibility.

The Pipeline and Hazardous Materials Safety Administration (PHMSA) Office Locations dataset was compiled on October 04, 2022 from the Pipeline and Hazardous Materials Safety Administration (PHMSA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The PHMSA Office Locations layer contains point features representing the addresses of PHMSA’s regional and field operations offices as well as its Headquarters and Inspector Training and Qualifications Division office. Each region office is charged with overseeing the safe and secure movement of daily shipments of hazardous materials by all modes of transportation, as well as ensuring the safe, reliable, and environmentally sound operation of the nation's pipeline infrastructure. Despite regional divisions the jurisdiction of PHMSA staff is nationwide and not limited to their regional area of responsibility. n some cases, both the Office of Pipeline Safety and the Office of Hazardous Materials Safety are located at the same address. In these cases, the data layer still contains a separate point for each office so that the contact information for each office can be provided. Although the PHMSA Headquarters and the Inspector Training and Qualifications Division represent both the OPS and the OHMS, there is only one point for each of these offices since there is only one contact for each office.

Information related to preferred and restricted routes for carrying hazardous materials.

The BETA release of the Highway Performance Monitoring System (HPMS) 2023 dataset was created using the most current data as of August 17, 2024 by the Federal Highway Administration (FHWA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The data represents a snapshot of extent, usage, condition, and performance as of December 31, 2023. This file geodatabase download provides HPMS data for each state as an individual feature class. It consists of the All Road Network of Linear Referenced Data (ARNOLD) geometry and the Section Data which is the attribution. ARNOLD and Sections are linked though linear referencing and are part of the HPMS data program. These data are analytical for the purpose of supporting transportation programs, funding and policy decisions at a national level. Operational applications such as navigation and routing may take advantage of HPMS with the understanding that it represents the average and not “real-time” of the system. The Highway Performance Monitoring System Field Manual contains a detailed description of each data element including coding instructions and attribute definitions. The Field Manual is available at: https://doi.org/10.21949/1519108.

Facilities under the Toxic Release Inventory (TRI) program, extracted from EPA TRIS system for reporting year 2004.

Facilities under the Toxic Release Inventory (TRI) program, extracted from EPA TRIS system for reporting year 2004.

These data are the road section attributes from the Highway Performance Monitoring System (HPMS). The HPMS Field Manual, and corresponding section dataset, identify records by their Data Item.

These data provide mapping, display, and analysis capabilities for the TRI National Analysis data at the following geographic levels: state, county, large aquatic ecosystem, metro/micropolitan statistical area, and facility. See the links below for data from specific reporting years. The TRI National Analysis is EPA's annual interpretation and summary of the most recent TRI data. It highlights how toxic chemical wastes were managed, where toxic chemicals were released and in what quantities, and how the TRI data compare to data from previous years. This dataset reports US, state, county, large aquatic ecosystem, metro/micropolitan statistical area, and facility level statistics of TRI releases, including information on: number of TRI facilities in the geographic area and their releases (total releases, as well as releases to water, air, and land); population information, including populations living within 1 mile of TRI facilities (total population, percent minority, and in percent under the poverty line); and Risk Screening Environmental Indicators (RSEI) model related pounds, toxicity-weighted pounds, and RSEI score. The source of administrative boundary data is the 2013 cartographic boundary shapefiles. Location of facilities is provided by EPA's Facility Registry Service (FRS). Large Aquatic Ecosystems boundaries were derived from the hydrologic unit boundaries and codes for the United States, Puerto Rico, and the U.S. Virgin Islands. It was revised for inclusion in the National Atlas of the United States of America (November 2002), and updated to match the streams file created by the USGS National Mapping Division (NMD) for the National Atlas of the United States of America.

The reports listed below are designed to provide information focused on hazardous materials and carriers and the hazardous materials safety permit program. All reports provide options to choose fiscal or calendar year, and carrier domicile including United States, Canada, and Mexico.

These data provide mapping, display, and analysis capabilities for the TRI National Analysis data at the following geographic levels: state, county, large aquatic ecosystem, metro/micropolitan statistical area, and facility. See the links below for data from specific reporting years. The TRI National Analysis is EPA's annual interpretation and summary of the most recent TRI data. It highlights how toxic chemical wastes were managed, where toxic chemicals were released and in what quantities, and how the TRI data compare to data from previous years. This dataset reports US, state, county, large aquatic ecosystem, metro/micropolitan statistical area, and facility level statistics of TRI releases, including information on: number of TRI facilities in the geographic area and their releases (total releases, as well as releases to water, air, and land); population information, including populations living within 1 mile of TRI facilities (total population, percent minority, and in percent under the poverty line); and Risk Screening Environmental Indicators (RSEI) model related pounds, toxicity-weighted pounds, and RSEI score. The source of administrative boundary data is the 2013 cartographic boundary shapefiles. Location of facilities is provided by EPA's Facility Registry Service (FRS). Large Aquatic Ecosystems boundaries were derived from the hydrologic unit boundaries and codes for the United States, Puerto Rico, and the U.S. Virgin Islands. It was revised for inclusion in the National Atlas of the United States of America (November 2002), and updated to match the streams file created by the USGS National Mapping Division (NMD) for the National Atlas of the United States of America.