Dev – CERS Services Availability


While CalEPA commits to supporting CERS as a “best effort” service, our technology team strives to maintain a high level of service availability. CERS is not guaranteed to be available on a 24x7x365 basis. CalEPA attempts to align service availability for Training and Staging environments with production but retains the rights to perform maintenance outside of these published availability windows for these auxiliary portals. CERS Technical Support is available Monday through Friday, 8 a.m. to 5 p.m., except on designated California State Holidays.

CERS hosted infrastructure leverages the California Department of Technology’s (CDT) CalCloud Infrastructure as a Service (IaaS) offering. CERS availability may be impacted during CalCloud maintenance. The CalCloud Service Availability Plan outlines details related to this offering and service availability.

CalEPA and CDT reserve the rights to perform emergency maintenance without notification at any time, if it is deemed necessary to protect and maintain CERS services. CERS should not be considered a guaranteed emergency response tool, data needed for local emergency response should be stored locally to ensure access in the event of an emergency.


CERS maintenance windows are used for deploying new versions of the application and sustaining the security, availability, and performance of the infrastructure. Service maintenance activities may result in services being limited or unavailable. Whenever possible, and as maintenance is necessary, CalEPA will schedule maintenance during the following windows:

* Fridays exact time will be posted on the CERS Business and Regulator Portal pages approximately 2 hours in advance.