| EPA Office of Underground Storage Tanks (OUST): Management of underground storage tanks (USTs) for petroleum and other products, response to tank leaks, and reuse of UST sites. U.S. Environmental Protection Agency. |
| Fiberglass Tank and Pipe Institute: A non-profit organization provideing information about fiberglass tanks and piping systems. |
| Geostock: An international engineering group specialized in the design, construction and operation of underground storage facilities for liquid, liquefied and gaseous hydrocarbons. |
| Leaking Underground Storage Tanks: A comprehensive introduction to the environmental aspects of underground storage of petroleum products. From Boulder, Colorado. |
| Underground Storage Tank Guide: Document and newsletter offered for sale -- provide solutions for environmental issues related to USTs. Sample articles from recent issues. |
| Underground Storage Tank Requirements: U.S. EPA information on UST technical standards and other regulatory requirements. |
| UST Services: Information about U.S. and California underground and aboveground storage tank requirements and testing, including offers for products and services. |