Yes, I took several ECE exams at my military test center, never paid a cent.

ICS

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2010 - Master of Business Administration, Strategic Leadership, TUI University (in work)
2008 - Bachelor of Science Degree, Liberal Arts, Excelsior College
2002 - Airframe & Powerplant License, Federal Aviation Administration
1998 - Associates Degree, Aviation Maintenance, Community College of the Air Force

Acquired 254 total credits: CCAF - 93, Exams - 66, ACE - 67, Trad - 28