| PHMSA | Photographer's Mate (microfilm) Seaman Apprentice 
| Others |
| PHMSA | Pipeline and Hazardous Materials Safety Administration
| Others |
| PHMSA | Pipeline and Hazardous Materials Safety Administration (U.S. Department of Transportation)
| Others |
| PHMSA | Pipeline Hazardous Materials Safety Administration
| Others |
| PHMSA | Pleasant Hill Martinez Soccer Association
| Others |