| No. | Description (PDF) | Effective Date |
| SOP-1000-GM-001 | Preparation and Revision of GWA Policies and Procedures | 09-27-2019 |
| SOP-1200-HR-001 | Drug & Alcohol-Free Workplace | 10-01-2019 |
| SOP-1200-HR-002 | Families First Coronavirus Response Act | 08-18-2020 |
| SOP-1300-SAF-001 | Workplace Safety Specific to COVID-19 | 11-18-2020 |
| SOP-1500-C&M-001 | Operation and Safety Guidelines for the Use of GWA Vehicles | 12-07-2020 |