| PHAST | Participatory Hygiene and Sanitation Transformation 
| Others |
| PHAST | Port Hawkesbury Antigonish Swim Team
| Others |
| PHAST | Positive Health Access to Services and Treatment
| Others |
| PHAST | Practical Home Automation System Technology
| Others |
| PHAST | Process Hazard Analysis Software Tool
| Others |
| PHAST | Process Heating Assessment and Survey Tool
| Others |
| PHAST | Promoting Health And Service Together
| Others |
| PHAST | Protecting Health and Slamming Tobacco
| Others |
| PHAST | Public Health Action Support Team
| Others |
| PHAST | Public Health Activities and Services Tracking
| Others |
| PHAST | Public Health And Safety Teams
| Others |