The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the Massachusetts Department of Environmental Protection (MassDEP). This revision includes regulatory amendments that allow gasoline dispensing facilities (GDFs) to decommission their Stage II vapor recovery systems as of January 2, 2015, and a demonstration that such removal is consistent with the Clean Air Act and EPA guidance. This revision also includes regulatory amendments that strengthen Massachusetts' requirements for Stage I vapor recovery systems at GDFs. The intended effect of this action is to approve Massachusetts' revised vapor recovery regulations. This action is being taken in accordance with the Clean Air Act.