https://archive.ph/tm5hy >The following list covers regulatory changes in reserve requirements and indexation of the low reserve tranche and the reserve requirement exemption beginning December 1, 1959, and their effects on required reserves. >.106. Effective for the reserve maintenance period beginning March 26, 2020, the 10 percent required reserve ratio against net transaction deposits above the low reserve tranche level was reduced to 0 percent, the 3 percent required reserve ratio against net transaction deposits in the low reserve tranche was reduced to 0 percent. The action reduced required reserves by an estimated $200 billion.