SAN FRANCISCO--(BUSINESS WIRE)--Fitch Ratings has affirmed the following ratings for Transmission Agency of Northern California (TANC), CA revenue bonds at 'A+': --$314.2 outstanding revenue bonds, series 2002A, 2003A, 2003B, 2009A, and 2009B. The Rating Outlook is Stable. SECURITY The bonds are secured by revenues paid pursuant to project agreements with 13 member-participants, which provide for the full allocation of TANC's costs, including debt service. KEY RATING DRIVERS TRANSMISSION PROVID