Strategic Sealift Officers (SSOs) can qualify for the Post 9/11 GI Bill. You must complete a 90 (consecutive) day ADT in order to qualify. Once you qualify (once you complete a 90 day ADT), all time spent on ADT counts towards GI Bill, including time spent on ADT before qualifying. For example: years 1 through 5 after graduation you only complete a 2 week active duty per year, so no time towards GI Bill. Year 6 you complete a 100 day ADT therefore you qualify for GI Bill, AND all ADT time before and after is aggregate towards GI Bill service. 90 days = 40%; 180 days = 50%; 1 year = 60%; 1.5 years = 70%; 2 years = 80%; 2.5 years = 90%; 3 years = 100%.