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The TankSafe product is provided through an internet-based system for commercial underground and above ground storage tank insurance. It is designed to be both easy and efficient -- from submission, through policy and financial responsibility certificate issuance. 



TankSafe Training & Resources

Learn more about using this fully automated internet-based system to secure commercial storage tank insurance.

TankSafe User Guide


  • Third-party bodily injury and property damage claims, resulting from storage tank incidents involving scheduled storage tanks
  • Corrective action costs, resulting from storage tank incidents involving scheduled storage tanks
  • Policy/certificate satisfies federal and/or state requirements for financial responsibility (where applicable)
  • Admitted in 50 states for AST/UST
  • Customized storage tank risk control services are available through ESIS Health, Safety, and Environmental Services, and include Spill Prevention Control and Countermeasures (SPCC) Plans, as well as underground storage tank management systems
  • Written on admitted  and non-admitted basis, with enhanced coverage terms and conditions:
    • Limits of liability and deductible
    • Coverage territory
    • Definitions of “additional insured,” “first named insured,” and “remediation costs”
    • Enhanced extended reporting period terms


  • Minimum $350 policy premium
  • From $500,000 per/$1 million aggregate to $5 million per/$5 million aggregate


  • Airports
  • Auto Dealerships
  • Commercial Industrial Facilities, such as:
    • Gas Stations
    • Convenience Stores
    • Manufacturing Plants
    • Municipalities
    • Hospitals
    • Schools, Colleges, Universities


Underground Storage Tanks (USTs) and Aboveground Storage Tanks (ASTs) older than 30 years, and ASTs with capacities greater than 49,999 gallons, are ineligible for the web-based system. Please contact your regional Westchester Environmental contact for assistance.


Westchester is one of the largest and most diverse excess and surplus lines commercial property and casualty insurance underwriters in the United States. Focused on the wholesale distribution channel, Westchester provides innovative specialty products for property, specialty casualty, environmental, professional risk, inland marine, product recall, small business, binding and programs. The business is further distinguished by exceptional financial strength, underwriting excellence and superior claims handling expertise. The material on this page contains product summaries intended for use solely by properly licensed insurance professionals. The insurance policy actually issued contains the terms and conditions of the contract. All products may not be available in all states and surplus lines products can be offered only through licensed surplus lines producers. Insurance provided by Westchester Fire Insurance Company and its U.S. based Chubb underwriting company affiliates. Chubb is the marketing name used to refer to subsidiaries of Chubb Limited providing insurance and related services. For a list of these subsidiaries, please visit our website at Westchester is a division of Chubb, a world leader in insurance. With operations in 54 countries and territories, Chubb provides commercial and personal property and casualty insurance, personal accident and supplemental health insurance, reinsurance and life insurance to a diverse group of clients. As an underwriting company, we assess, assume and manage risk with insight and discipline. We service and pay our claims fairly and promptly. The company is also defined by its extensive product and service offerings, broad distribution capabilities, exceptional financial strength and local operations globally. Parent company Chubb Limited is listed on the New York Stock Exchange (NYSE: CB) and is a component of the S&P 500 index. Chubb maintains executive offices in Zurich, New York, London, Paris and other locations, and employs approximately 40,000 people worldwide. Additional information can be found at: