My 07 Mainship Pilot 34 has an NMMA certification plate below the helm, visible in the attached picture. Not sure about CE certification, nor the 390 model, but it would tend to suggest that is at least NMMA certified. I also checked in the 2000 year 390 manual, posted on Bacchus' website at
https://drive.google.com/drive/mobil...2hrQU9wQzNiakE
The manual mentions being NMMA certified and on page 4.12 is a picture of the same certification plate as on my Pilot. Unfortunately, there are not certification numbers listed on the plate.
Hope this helps you track this down.
Brett