The U.S. Environmental Protection Agency (EPA) issued a final rule April 3, 2013, adjusting regulatory baseline consumption allowances for ozone-depleting chemicals and reinstating the ability to transfer baseline allocations between different substances within a company. 78 Fed. Reg. 20,004 (4/3/13). The revision responds to a case that challenged EPA’s 2009 rule revisions. Before 2009, the rule evidently allowed affected entities to transfer their baseline allowances to different chemicals through transfers either within the company or with other companies. The 2009 rule eliminated the credit for transfers that occur within the same company. A court ruled that this operated retroactively because it changed some companies’ baseline allocations by eliminating the intra-company conversions that had been credited to them under the prior regulations. The April 2013 rule reinstates the ability to consider intra-company chemical transfers and revises the numerical consumption allowances for several companies’ baseline allowances through 2014.