On June 19, the U.S. Environmental Protection Agency (EPA) finalized new rules outlining requirements for owning and operating underground storage tanks (USTs), such as underground diesel fuel storage tanks found at many ready mixed concrete plants. The new rule updates the UST rules that were put in place back in 1988. The new changes include updated operator training, new secondary containment mandates, greater operation and maintenance duties, vent line restrictions, repair obligations, new reporting requirements and new notification requirements for new USTs and transfer of ownership.