| ADA | Americans with Disabilities Act |
| CFR | Code of Federal Regulations |
| DGR | DGR Management |
| MeVa | Merrimack Valley Transit |
| MVATC | Merrimack Valley Area Transportation Company |
| RTA | regional transit authority |
| SMS | safety management system |
| STS | Special Transportation Services |
| Date published: | May 5, 2026 |
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