At this stage, it is still PCR to enter Batam.
PDT = Pre Departure Test
This is according to the travel advice website from where I'm from at least.
https://www.smartraveller.gov.au/des...asia/indonesia
I have not been able to find any information so far that says we can take ART to get into Batam.
Indonesia does accept RT-PCR but it is just another form of PCR testing and still costs about the same amount.
Let's hope they soon downgrade it to ART at least if they're not going to drop PDT altogether.
And to come back to Sg, it looks like you can do a tele supervised ART test from any country you're coming back from.
https://mainlymiles.com/2022/03/28/c...-to-singapore/