As previously reported in the HGS Update, the U.S. Environmental Protection Agency (EPA) has proposed findings with respect to the validity of 39 different state implementation plans – including Florida’s – regarding their treatment of excess emissions during startup, shutdown, and malfunction (SSM SIP Call). Comments on EPA’s SSM SIP Call were originally due by April 11, 2013; however, following a number of extension requests, EPA has published notice extending the comment deadline to May 13, 2013. Additional information regarding EPA’s proposed action is available here.