The Department of Navy Credentialing Opportunities On-Line (DON COOL) website represents the joint effort, close coordination and shared resources that support the Navy and Marine Corps COOL programs. Credentialing is becoming ever more important across the DoD, adding value for Sailors and Marines while they serve and as they transition to civilian life. DON Civilians can also benefit from credentialing as part of their personal and professional development. DON COOL reflects the Department of the Navy's ongoing commitment to Sailors, Marines, and Civilians in providing world class training, experience, and opportunities that will serve them well on active duty, Federal service, and post-service civilian careers.
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