AC Alert sends emergency alerts by phone, text, and/or email throughout Alameda County. This is an opt-in system.
PG&E sends alerts about outages, notices, and service information by phone, text, and/or email. This is an opt-in system.
National Weather Service provides a list of third party sources that send weather alerts through phone, text, and/or email. The listed sources are opt-in systems.
Community Emergency Response Team (CERT) educates and trains volunteers in basic emergency response skills, such as fire safety, light search and rescue, team organization, and disaster medical operations.