Receipt of Information Under the Toxic Substances Control Act
EPA is announcing its receipt of information submitted pursuant to a rule, order, or consent agreement issued under the Toxic Substances Control Act (TSCA). As required by TSCA, this document identifies each chemical substance and/or mixture for which information has been received; the uses or intended uses of such chemical substance and/or mixture; and describes the nature of the information received. Each chemical substance and/or mixture related to this announcement is identified in Unit I. under SUPPLEMENTARY INFORMATION.
Approval of California Air Plan Revisions, Western Mojave Desert, Rate of Progress Demonstration
The Environmental Protection Agency (EPA) is proposing to approve a state implementation plan revision submitted by the State of California to meet Clean Air Act requirements applicable to the Western Mojave Desert (WMD) ozone nonattainment area. The EPA is proposing to approve the initial six-year 15 percent rate of progress demonstration to address requirements for the 1997 8-hour ozone national ambient air quality standards (NAAQS).
Approval of Arizona Air Plan Revisions, Arizona Department of Environmental Quality and Maricopa County Air Quality Department
The Environmental Protection Agency (EPA) is proposing to approve revisions to the Arizona Department of Environmental Quality (ADEQ) and Maricopa County Air Quality District (MCAQD) portions of the Arizona State Implementation Plan (SIP). These revisions were submitted by ADEQ in response to EPA's May 22, 2015, finding of substantial inadequacy and SIP call for certain provisions in the SIP related to affirmative defenses applicable to excess emissions during startup, shutdown, and malfunction (SSM) events. EPA is proposing approval of the SIP revisions because the Agency has determined that they are in accordance with the requirements for SIP provisions under the Clean Air Act (CAA or the Act).