On June 4, 1963, Kennedy signed Public Law 88-36, which marked the beginning of the end for even the $1 silver certificate. The law authorized the Federal Reserve to issue $1 and $2 bills, and revoked the Silver Purchase Act of 1934, which authorized the Secretary of the Treasury to issue silver certificates (by now limited to the $1 denomination). Because it would be several months before the new $1 Federal Reserve Notes could enter circulation in quantity, there was a need to issue silver certificates in the interim. Because the Agricultural Adjustment Act of 1933 granted the right to issue silver certificates to the president, Kennedy issued Executive Order 11110 to delegate that authority to the Treasury Secretary during the transition.