| Acronym | Definition |
|---|
| MRWA➣Main Roads Western Australia |
| MRWA➣Minnesota Rural Water Association (Elbow Lake, MN) |
| MRWA➣Michigan Rural Water Association (Harrison, MI) |
| MRWA➣Missouri Rural Water Association |
| MRWA➣Maine Rural Water Association |
| MRWA➣Muskegon River Watershed Assembly (Big Rapids, MI) |
| MRWA➣Mattabesset River Watershed Association (Connecticut) |
| MRWA➣Manasquan River Watershed Association (Eatontown, New Jersey) |
| MRWA➣Montour Run Watershed Association (Pittsburgh, PA) |
| MRWA➣Mississippi Rural Water Association (Raymond, MS) |
| MRWA➣Mystic River Watershed Association (Massachusetts) |
| MRWA➣Maryland Rural Water Association |
| MRWA➣Massachusetts Rural Water Association |
| MRWA➣Mining Right of Way Act (Canada) |
| MRWA➣Montana Rural Water Association |
| MRWA➣Midland Railway of Western Australia |
| MRWA➣Minnesota River Watershed Alliance (Mankato, MN) |