On September 10, 2014, the U.S. Small Business Administration (SBA), published a proposed rule to increase employee based size standards for 209 industries in North American Industry Classification System (NAICS) Section 31-33, Manufacturing.  SBA also proposed to increase the refining capacity component of the Petroleum Refiners (NAICS 324110) size standard to 200,000 barrels per calendar day total capacity for businesses that are primarily engaged in petroleum refining.  The proposed rule also eliminated the requirement that 90 percent of a refiner's output being delivered should be refined by the bidder.  As a part of its comprehensive size standards review required by the Small Business Jobs Act of 2010, SBA evaluated all 364 industries in NAICS Sector 31-33 to determine whether their size standards should be retained or revised.  This is one of the rules that will examine industries grouped by an NAICS Sector. SBA has applied its "Size Standards Methodology," which is available on its website at http://www.sba.gov/size, to this proposed rule.