Illinois has entered into a cooperative agreement with U.S. EPA in which Illinois EPA and the Illinois Office of the State Fire Marshal (OSFM) administer a comprehensive underground storage tank (UST) program at the state level, Illinois EPA administers the remedial investigation and corrective action portion of the state program and reimbursements, while OSFM administers the preventative side of the program. Illinois EPA Leaking Underground Storage Tank (LUST) Section staff review the technical adequacy of plans, reports and associated budgets. This includes the development of the appropriate remediation objectives for each site. Once the site has met its remediation objectives and program requirements, Illinois EPA issues a 'No Further Remediation' letter for the LUST release. LUST Section staff also perform site visits as needed. In addition, Illinois EPA staff review and process claims for reimbursement from the UST Fund (for investigation and remediation costs). In most cases, OSFM is already involved with a site when a release is reported to the Illinois Emergency Management Agency. OSFM regulates daily operation and maintenance of UST systems, including oversight for tank removals.