Perhaps this might provide a bit of clarity...

http://www.dynamicfuel.com/announcement/pdf/D...0Final.pdf

http://www.dynamicfuel.com/announcement/pdf/P...012_V2.pdf

"Does not override or modify existing conditions",  meaning with CARB you cannot tamper in any way, shape or form the preset conditions of the engine set by CARB.  If you can reduce emissions by not tampering you are good to go.  So to clarify the statement posted nothing that has been added by the HydraGen has reduced the original effectiveness of the standards set by CARB for Detroit Diesels, which are estimated at 1,000,000 currently in use and "the Executive Order permits the advertising, sales and installation fo the HydragenTM hydrogen generator." That is huge potential.

 If you go to the CARB site and search the many HHO units exempted by CARB you will discover that since the early 1980's CARB has been certifying various HHO devices almost verbatim as the HydraGen.  Included in CARB's statements are the different models in that class of engine that the various units over the years could be used on.  It is probably true then that if the HydraGen has been approved for that class of engine, it is good for all in that class.  You would have to go to the CARB sight, look up the HydraGen and it would be listed there.

Also, looking at the diagram of their HydraGen, it is a similar but different type of unit and construction. I just glanced at it and it appeared to be a dry-cell HHO unit whereas the HYImpact is a wet-cell HHO unit.

Lastly, while the HydraGen people may not be blowing their horn in the same manner that HTI did last year, they're blowing their horn...