Online Verification of Maryland Tax Account Numbers
Direct Pay Permits:
- Exelon Corporation (including following subsidiaries)
Baltimore Gas & Electric Company ("BGE")
Constellation Power Source Generation, Inc.
Calvert Cliffs Nuclear Power Plant, LLC
- Potomac Edison Company
- Potomac Electric Power Company
- Washington Gas Light Company
1) Northrop Grumman Systems Corporation
2) Transcontinental Gas Pipe Line Corporation
3) SAIC - Frederick
8) Mack Trucks, Inc.
14) RG Steel Sparrows Point, LLC
17) Delmarva Power & Light Company
18) Norfolk Southern Railway
19) CSX Transportation Inc.
20) General Motors LLC. (including following subsidiaries)
21) Millennium Inorganic Chemicals, Inc.
Allison Transmission Division
23) W.L. Gore and Associates, Inc.
24) Human Genome Sciences, Inc.
25) MedImmune, LLC.(including following affiliate)
MedImmune Biologics, Inc.
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