Denial letter recommendation by US EPA regarding the following chemicals: -22- 850 cylinders at 13.6 kg each. Total of 11,560 kg; R-422B- 20 cylinders at 11.3kg each, for a total of 226 kg; R-454B- 12 cylinders at 10 kg each, for a total of 120 kg; R-407C- 16 cylinders at 11.3 kg each, for a total of 180.8 kg; R-448A- 12 cylinders at 11.3 kg each, for a total of 135.6kg; HFC-32- 20 cylinders at 9.5kg each, for a total of 190 kg; R-410A- 60 total cylinders at 11.3kg each, for a total of 678kg; R-407A- 20 cylinders at 11.3kg each, total of 226kg