I posted Kerry's two DD214s, which are prepared when you are released from active duty, not discharged. They are not as you indicated, "his transfer to active duty", but just the opposite.
I only see one DD-214, and it's dated in august of 1966. It says he's discharged from OCS, accepting a commission, and entering active duty.
Read it more carefully.
Okay, now I see the second one. That's his transfer to the Naval Reserve, which took effect in 1970.