The DON COOL family of web sites is made up of four related sites:
- DON COOL is the umbrella site that serves as a gateway to Navy COOL, Marine Corps COOL, and DON Civilian COOL as well as an information center on the broader Department of Navy credentialing initiatives.
- Navy COOL is a Navy-centric site with general and occupation-specific information on credentialing opportunities for Sailors.
- Marine Corps COOL is a Marine Corps focused site with general and occupation-specific information about credentialing opportunities for Marines.
- DON Civilian COOL is for civilian employees of the Department of the Navy with general and occupation-specific information about credentialing opportunities.