The United States dollar is unique in the way that there have been more than 10 types of banknotes, such as Federal reserve Bank Note, gold certificate, and United States Notes. The Federal Reserve Note is the only type that remains in circulation since the 1970s. Currently printed denominations are $1, $2, $5, $10, $20, $50, and $100. Notes above the $100 denomination ceased being printed in 1946 and were officially withdrawn from circulation in 1969. These notes were used primarily in inter-bank transactions or by organised crime; it was the latter usage that prompted President Richard Nixon to issue an executive order in 1969 halting their use. With the advent of electronic banking, they became less necessary. Notes in denominations of $500, $1,000, $5,000, $10,000, and $100,000 were all produced at one time; The design of the notes has been accused of being unfriendly to the visually-impaired. A U.S. District Judge ruled on November 28 2006 that the American bills gave an undue burden to the blind and denied them "meaningful access" to the U.S. currency system. The judge has ordered the Treasury Department to begin working on a redesign within 30 days.