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Career Online HIgh School


Diploma dude

Career Online High School (COHS) is an accredited high school diploma and career certificate program offered free of charge by Boulder Public Library in partnership with Colorado State Library. 

Boulder County residents who are 19-years-old or older are eligible to apply. 
See more information at 

Learn Online

Forgot your password?

If you've forgotten your password and need to reset it, please email

You can also call support at at 


Exam Proctoring

Boulder County Testing Center
Front Range Community College

2190 Miller Drive
Longmont, CO 80501

Student Development Center
3645 W. 112th Avenue
Westminster, CO 80031