An act to amend Sections 22170.5, 22250, 22455.5, 24201.5, 24204, 24209, 24209.3, 24210, 25006, 25009, 26300, and 26606 of, and to amend, repeal, and add Sections 22164.5, 26004, 26113, 26135.7, 26139, and 26139.5 of, the Education Code, and to amend Sections 20405, 20407, 20408, 20409, 20410, 21023.5, 31520, 31520.1, 31520.2, 31621.7, 31622, 31639.3, 31641, 31641.2, 31641.6, 31641.20, 31641.21, and 31835 of, to repeal Section 20411 of, and to add Sections 31540.5 and 31789.6 to, the Government Code, relating to retirement, and making an appropriation therefor.