I know for certain the ID Now test is accepted. I e-mailed EHAS@sintmaartengov.org and received a response in 15 minutes.
Good morning
Thank you for contacting St. Maarten EHAS.
My name is Jacquelyn Walker I am one of the EHAS administrative assistant with the island of St Maarten.
Pursuant to your question below yes the Abbott ID Now is Accepted and although you are vaccinated a negative test is required of you 72hrs prior to your travels hope to have answered you adequately.
Regards,
St, Maarten Tourism Bureau,
Jacquelyn Walker