Deco Terminology - call for discussion

Joe Ross joe at
Wed Feb 12 10:44:18 UTC 2014

I don't know if it's my place to weigh in here, but as of 2014, PADI is using the terminology "no stop" dives, since all dives are, in fact, decompression dives. If it needs to be changed at all, I feel this is better terminology than, "minimal decompression" because minimal is a subjective term, and no agency uses that language.

That said, NDL and "no decompression" are terms that have been widely used for many decades, and their meaning is widely understood.

BTW, thank you so much for all the hard work on Subsurface! It is, by far, the best dive logging program available, and getting better every day.

- Joe

Sent from my iPad

> On Feb 12, 2014, at 10:29 AM, Pedro Neves <nevesdiver at> wrote:
> Hi all:
> While on the process of helping Willem (and all the others) with the Subsurface manual, I keep wondering if we should change the terminology that refers to "no-deco" dives (and NDL, etc.).
> I Personally hate the fact that people (and books) refer to some dives as “no decompressions dives” when in reality they should be called “minimum decompression dives”. 
> Technically speaking, decompression is a reduction in ambient pression, which occurs at the end of every single dive. 
> To me, the difference between dives is that some dictate that only a “minimum deco” (ascent rate in the region of 3 to 10 m/min and a “safety stop”) and others dictate one or more “decompression stops”.
> Reffering to minimum deco dives as no-deco dives helps, in my oppinion, to perpetuate the notion that decompression is a somewhat "obscure" and "esoteric" thing that matters only to experienced or "technical" divers and that it's relevant only on some of out dives.
> I know this is a controversial issue and I certainly don't want to impose my views on anyone, but I'd like to have your opinions on whether to apply this view on our manual, or just keep this to myself...
> Thanks in advance:
> Pedro Neves
> _______________________________________________
> subsurface mailing list
> subsurface at
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the subsurface mailing list