FRBSL meaning in Governmental ?

The Federal Reserve Bank of St. Louis is one of 12 regional Reserve Banks that, along with the Board of Governors in Washington, D.C., make up the United States' central bank. Missouri is the only state to have two main Federal Reserve Banks (Kansas City also has a bank). Located in downtown St. Louis, the St. Louis Fed is the headquarters of the Eighth Federal Reserve District, which includes the state of Arkansas and portions of Illinois, Indiana, Kentucky, Mississippi, the eastern half of Missouri and West Tennessee. It has branches in Little Rock, Louisville and Memphis. Its building, at 411 Locust Street, was designed by St. Louis firm Mauran, Russell & Crowell in 1924. The Eighth District serves as a center for local, national and global economic research, and provides the following services: supervisory and regulatory services to state-member banks and bank holding companies; cash and coin-handling for the District and beyond; economic education; and community development resources.