Reply To: Annex VI Grace Period Share ideas, questions and answers Search for: Home Page › Forums › Labels › Annex VI Grace Period › Reply To: Annex VI Grace Period Jennie DeemParticipant Reply To: Annex VI Grace Period April 27, 2020 at 9:31 pm Once the EU CTR is implemented (second half of 2021 or later) there is a 3-year grace period for ongoing studies.