The agency is also removing the compliance date requirements for the exempted containers. 

This announcement is consistent with President Obama’s executive order on regulatory reform, which requires federal agencies to design cost-effective, evidence-based regulations that are compatible with economic growth, job creation, and competitiveness.

As part of the immediate implementation of that strategy, agencies were asked to develop a plan to ensure that existing regulations are up-to-date, effective, and cost justified. This update to SPCC regulations is in line with that effort. 

The SPCC regulations, in place since the 1970s, require facilities storing more than 1,320 gallons of oil to create and implement plans to prepare, prevent and respond to oil spills.

The exemption does not apply to fuel oil and other applicable oils stored on farms; farms that store the regulatory threshold of fuel oil and other applicable oils are covered under the SPCC. The rule is intended to prevent damage to the inland waters and shorelines of the United States. 

More information on the milk and milk product containers exemption: 
http://www.epa.gov/oem/oemweb/content/spcc/spcc_milk.htm