The CEQA process requires a lead agency to respond to each written comment received during the DEIR review period. Each individual comment is evaluated for relevance to the DEIR and a response is prepared. In some instances, a comment may result in revision to the DEIR. The collection of comments and responses together with the DEIR constitute what is called the Final EIR (FEIR). The FEIR must then be certified by the lead agency as adequate and in compliance with CEQA before a project can be approved.
On January 24, 2012, the County of Sonoma Board of Supervisors took final action and approved certification of the Environmental Impart Report (EIR) and approved the Charles M. Schulz - Sonoma County Airport Master Plan and related General Plan and Zoning amendments.