| FWPCA | Federal Water Pollution Control Administration |
|---|---|
| HAP | Handicapped Aid Program; Hazardous Air Pollutants [List]; hazardous air pollution; health alliance p... |
| NAPCA | National Air Pollution Control Administration |
| CLO | cod liver oil |
| CO | carbon monoxide; cardiac output; castor oil; casualty officer; centric occlusion; cervical orthosis;... |