This all goes away in the digital world. If the job is digital to begin with, there is no question about the appropriate output. The other major question mark is the cost of complying with governmental regulations. As responsible citizens, we understand the need for safety, but without getting too political, I can safely say that the government often carries regulations to extremes. The treatment of anhydrous ammonia is a case in point.
Regulations do vary from state to state, and sometimes even within a state.
Since they are often enforced locally, the interpretation of the same law can vary greatly from locale to locale. Steve Carnevale, an environmental consultant for reprographers and president of H.C.S.C. Environmental, Inc. in the San Francisco Bay area, offered some clarification on this issue. I travel around the country and I have run into various regulatory agencies. Usually the CUPA is the local County Dept. of Environmental Health or Public Health. The strange part in all of this is that ammonia dissipates quickly in the air and does not pose much of a threat once it is released out the vent pipe on the roof and dissipates.