Maryland is keeping the highest bond rating possible from three agencies ahead of a sale of general obligation bonds on August 11th. Fitch Ratings, Moody’s Investors Service and S-and-P Global ratings are all giving the state the highly-valued triple-A ranking. The top ratings help the state get the best interest rates when it sells bonds to finance construction projects. Maryland is one of only 13 states to receive triple-A ratings from all three agencies.