20684. For each local safety member subject to Section 21370, effective on January 1, 1985, or later date of entrance into this system as such a member, the normal rate of contribution shall be 7 percent of compensation.The normal rate of contribution as established under this section for a local safety member whose service is included in the federal system and whose retirement allowance is reduced pursuant to Section 21370 because of that inclusion shall be reduced by one-third as applied to compensation not exceeding four hundred dollars ($400) per month for service rendered after the date of execution of the modification of the federal-state agreement including services in the federal system and prior to termination of his or her coverage under the federal system.The operative date of this section with respect to a local safety member shall be the date upon which the local safety member becomes subject to Section 21370.(Repealed and added by Stats. 1995, Ch. 379, Sec. 2. Effective January 1, 1996.)