The Environmental Protection Agency (EPA) is taking final action to approve revisions to the State of Nevada's ("State") April 3, 2012 state implementation plan (SIP) submission and the State's August 26, 2016 supplement to their 2012 submittal. The State submitted these two SIP revisions for the Lake Tahoe, Nevada carbon monoxide (CO) area to address the Clean Air Act (CAA) requirement to submit by the eighth year of the first maintenance plan a second 10-year maintenance plan.