Only laws of a general and permanent nature are put into the Codes. Generally, superseded laws cannot be found in the current sets of Codes. Locating superseded or uncodified legislation requires you to go to an earlier version of the Code (located in the Library on Stack Level A) or to Statutes of California and Digests of Measures (bound as California Statutes and Amendments to the Codes).
Statutes of California and Digests of Measures (bound as California Statutes and Amendments to the Codes) is a permanent record of the laws passed by the California Legislature since 1850. The laws are published in chronological order and the set includes constitutional amendments, approved voter initiatives and referenda, and the summary digest for bills passed. In addition, it includes tables of Code sections affected, vetoed bills, and cross-reference tables from bill number to Chapter Number. There is also a subject index for each Legislative Session.
In addition, both Westlaw and Lexis archive earlier versions of the Code: