...refunding bonds, subseries 2013D-2a and 2013D-2b. These ratings reflect our application of the low correlation joint criteria based on our 'A+' SPUR on the authority and the ratings on the subseries 2013D-2a and 2013D-2b LOC provider, Bank of America N.A. The rating's short-term component reflects solely the short-term counterparty rating on the LOC provider. The ratings reflect our view of the TBTA's consistently strong historical financial performance and service essentiality, and our expectation that the authority will maintain combined debt service coverage (DSC) at levels adequate for the rating. More specific credit strengths, in our opinion, include the following:...