Originally Posted by
blastoff
USAF time in grade policy says majors can go to 20 years commissioned service.
Emphasis is on "can," although unless it changed recently high year tenure for an O4 is 24 years. Keep in mind, OP is a Captain so this is irrelevant to the thread. That said, if you're twice passed over you may be offered continuation...if the AF wants to. The 95 year group had a very very small (may have been zero) percentage offered continuation. My memory was about 200 guys got suddenly and unexpectedly kicked to the curb.