IMPORTANT NOTICE – OHWA will be on hiatus starting September 21, 2025. New course registrations are suspended. Current learners must complete courses by September 21 to receive certificates.

United States

Sea Otter Mortality off the Coast of California, USA

Sea Otter Mortality off the Coast of California, USA

Restoring a Wet Meadow Ecosystem in California, USA

Restoring a Wet Meadow Ecosystem in California, USA

Community Health Needs Assessment in Knights Landing, California USA

Community Health Needs Assessment in Knights Landing, California USA

Responding to Cases of Rocky Mountain Spotted Fever in California, USA

Responding to Cases of Rocky Mountain Spotted Fever in California, USA