The Colusa County Office of Emergency Services (OES), a division of the Colusa County sheriff's office, is the county's emergency management agency. As such, it is the lead agency that fulfills the county's requirements under the Emergency Services Act (Government Code Section 8550 et. seq.).
OES works with:
Partners in the emergency management programs of the cities of Colusa and Williams
The Colusa Regional Medical Center
Various special districts, authorities, and joint powers authorities within Colusa County