The Lanterman Developmental Disabilities Services Act is codified in the California Welfare and Institutions Code. This compilation, prepared by the Legislative Counsel, includes the 2015 revisions to the Lanterman Developmental Disabilities Services Act and related laws (Divisions 4.1, 4.5, and 4.7 of the Welfare and Institutions Code and Title 14 of the Government Code). For the official and most current versions of the Lanterman Act and other California law, please visit the California Legislative Information website at leginfo.legislature.ca.gov This edition shows all sections as they are in effect on and after January 1, 2016. Click here to access the Department of Developmental Services page for the Lanterman Act.