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UDCs were required at the time of installation for all systems installed after?
June 30, 1995
January 1, 2000
July 1, 1998
January 1, 1995
The correct answer is: January 1, 2000
Understanding the regulatory framework surrounding underground storage tanks (USTs) is critical for compliance and safety in operation. In California, UDCs, or under-dispenser containment systems, became a requirement to mitigate potential leaks and protect groundwater quality. The correct choice indicates that UDCs were mandated for all systems installed after January 1, 2000. This date is important as it reflects the regulatory push to enhance safety measures for USTs, particularly in light of the environmental risks associated with leaks from petroleum dispensers. The implementation of UDCs is a response to concerns over the limitations of earlier systems, which may not have adequately contained spills or leaks, thereby emphasizing the evolution of safety standards in the industry. Previous dates, such as June 30, 1995, and January 1, 1995, do not align with the regulatory timeline that specifically mandated UDCs for installations. Likewise, July 1, 1998, predates the established compliance requirement for UDCs. These dates were part of earlier regulations but did not encompass the more stringent rules that defined the UDC requirements later in the regulatory framework.