| Maryland |
| Active Locals |
| Local |
Company |
City |
| 17 |
Baltimore Horseshoe Casino |
Balitmore |
| 171 |
Xerxes |
Williamsport |
| 171 |
Mack Truck (Shop) |
Hagerstown |
| 171 |
Mack Truck (Office) |
Hagerstown |
| 171 |
EPS / Valspar |
Williamsport |
| 171 |
Mack Trucks Reman |
Hagerstown |
| 239 |
Murray Corp. |
Cockeysville |
| 738 |
ST Eng./Middle River Aircraft Sys. |
Baltimore |
| 738 |
Lockheed Martin |
Baltimore |
| 1247 |
Mack Truck (Engineering) |
Hagerstown |
| 1338 |
Solvay |
Havre de Grace |
| 2301 |
Mack Truck (PDC) |
Elkridge |
| 2301 |
Mack Truck (Clerical) |
Elkridge |
| 2503 |
MGM Casino |
Oxon Hill |
| 2750 |
National Institute of Health (NIH) |
Bethesda |
| Retiree Locals |
| 354 |
Dresser/Wayne Industries |
Salisbury |
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