To the best of my knowledge . IDAC has not said you need proof of COVID-19 negative test . Maybe you can direct me to the link .https://dr1.com/forums/threads/dr-reopens-airports-authorizes-commercial-aviation.393534/#post-5536944
IDAC is not credible? The requirement for a "health certificate" is incredible. I guess you can just be tested and wait in the airport after you arrive. That will work out really well.
Instead they say a health declaration form has to be filled out by the passenger before deplaning the aircraft .