Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
I know that Ocean Divers can accommodate DIN. They have pulled the plug and I have dove DIN a number of times with them. You might want to carry a wrench with you. Once it took a couple minutes to find their's. I use the DIN when I can but I also carry an adapter so that I can use a non-DIN tank if I need to. Especially important if you are diving with a one boat op. Over the years more than once (but not with OD) I have wound up on a different boat/operator than I had planned on (boat died, not enough for boat to go, only boat from that op was not going where I wanted).
LOL I'm guessing you never fly to a dive site.All divers should have a full set of metric and imperial allen keys with them and an adjustable wrench, and at least one if not two yoke adapters on all dive outings.