On December 5, 2008, the Bush EPA issued final rules on several amendments to the SPCC (Spill Prevention Control and Countermeasure) regulations. These amendments included exemptions for some operations. These final rules were to be effective February 3, 2009.
On April 1, 2009, the Obama EPA issued a final rule to postpone the effective date of the December 5 amendments till January 14, 2010. As expected, the Obama White House had ordered all federal agencies to delay and review all last-minute regulatory changes that were made by the out-going Bush Administration.
The delay in implementing the December 5, 2008 amendments does NOT mean that you do not have to comply with the SPCC if you meet those SPCC thresholds.