The module addresses financial assurance standards explaining first the mechanisms and then the extent of coverage required. It describes the applicability of financial assurance for closure and post-closure and identifies necessary factors for calculating cost estimates. It explains allowable mechanisms for financial assurance, including which mechanisms can be used together and under what conditions. It also explains how financial assurance works when a company owns several facilities or when a company is owned by one or more larger companies. It presents the financial assurance requirements for accident liability coverage. It identifies who is subject to sudden versus nonsudden liability provisions and cites applicable definitions. It specifies the amount of liability coverage required for single facilities and multiple facilities and lists allowable mechanisms and combinations of mechanisms that can be used to satisfy financial assurance liability requirements.