The AS9100:2016 Transition Timeline

Certified companies to AS9100C will need to upgrade to AS9100D from when their certification body can begin issuing certificates (sometime late in 2016) through June 14, 2018. This should typically coincide with a scheduled surveillance or recertification audit. A special audit can also be scheduled and paid for. You should plan your upgrade based on this transition timing window and when your audit cycle falls.