| 7501 | 1d4d | TE | MD NRP Area 3 | Natural Resources Police - Area 3 (Prince George's/Anne Arundel) | Law Dispatch |
| 7502 | 1d4e | TE | MD NRP Area 3 T1 | Natural Resources Police - Area 3 Tac 1 (used for Dispatch) | Law Tac |
| 7503 | 1d4f | TE | MD NRP Area 3 T2 | Natural Resources Police - Area 3 Tac 2 | Law Tac |
| 7506 | 1d52 | TE | MD NRP Area 5 | Natural Resources Police - Area 5 (Carroll, Howard, Montgomery, Tidal Waterways of Baltimore City and Baltimore County) | Law Dispatch |
| 7507 | 1d53 | TE | MD NRP Area 5 T1 | Natural Resources Police - Area 5 Tac 1 (used for Dispatch) | Law Tac |
| 7508 | 1d54 | TE | MD NRP Area 5 T2 | Natural Resources Police - Area 5 Tac 2 | Law Tac |
| 7511 | 1d57 | TE | MD NRP Area 6 | Natural Resources Police - Area 6 (Baltimore City (Land)/Baltimore County (Land)/Harford/Cecil) | Law Dispatch |
| 7512 | 1d58 | TE | MD NRP Area 6 T1 | Natural Resources Police - Area 6 Tac 1 | Law Tac |
| 7513 | 1d59 | TE | MD NRP Area 6 T2 | Natural Resources Police - Area 6 Tac 2 | Law Tac |
| 7516 | 1d5c | TE | MD NRP Area 7 | Natural Resources Police - Area 7 (Frederick/Washington) | Law Dispatch |
| 7517 | 1d5d | TE | MD NRP Area 7 T1 | Natural Resources Police - Area 7 Tac 1 (used for Dispatch) | Law Tac |
| 7518 | 1d5e | TE | MD NRP Area 7 T2 | Natural Resources Police - Area 7 Tac 2 | Law Tac |
| 7521 | 1d61 | TE | MD NRP Area 8 | Natural Resources Police - Area 8 (Allegany/Garrett) | Law Dispatch |
| 7522 | 1d62 | TE | MD NRP Area 8 T1 | Natural Resources Police - Area 8 Tac 1 | Law Tac |
| 7523 | 1d63 | TE | MD NRP Area 8 T2 | Natural Resources Police - Area 8 Tac 2 | Law Tac |
| 7526 | 1d66 | T | MD DNR ElkNeckSP | Elk Neck State Park Ops | Public Works |
| 7527 | 1d67 | T | MDDNRFairHillAdm | Fair Hill Natural Resources Management Area Admin | Public Works |
| 7529 | 1d69 | TE | MD NRP CommMngrs | Natural Resources Police - Wireless Communications Managers | Law Talk |
| 7531 | 1d6b | T | MD DNR ASP Ops | Assateague State Park Ops | Public Works |
| 7532 | 1d6c | T | MD DNR Fair Hill | Fair Hill Natural Resources Management Area Ops | Public Works |
| 7533 | 1d6d | TE | MD NRP Tac Resp | Natural Resources Police - Tactical Response Team | Law Tac |
| 7538 | 1d72 | T | MD DNR Forest N | Forestry Northern | Public Works |
| 7539 | 1d73 | T | MD DNR Forest S | Forestry Southern | Public Works |
| 7540 | 1d74 | T | MD DNR Forest W | Forestry Western | Public Works |
| 7541 | 1d75 | T | MD DNR N PkOpsCl | North Park Ops Call | Public Works |
| 7542 | 1d76 | T | MD DNR S PkOpsCl | South Park Ops Call | Public Works |
| 7543 | 1d77 | T | MD DNR W Pks Ops | West Park Ops | Public Works |
| 7546 | 1d7a | TE | MD NRP Area 4 | Natural Resources Police - Area 4 (Calvert/Charles/St. Mary's) | Law Dispatch |
| 7547 | 1d7b | TE | MD NRP Area 4 T1 | Natural Resources Police - Area 4 Tac 1 (used for Dispatch) | Law Tac |
| 7548 | 1d7c | TE | MD NRP Area 4 T2 | Natural Resources Police - Area 4 Tac 2 | Law Tac |
| 7550 | 1d7e | T | MD DNR PVSP Adm | Patapsco Valley State Park - Admin | Public Works |
| 7551 | 1d7f | TE | MD NRP Area 1 | Natural Resources Police - Area 1 (Somerset/Wicomico/Worcester) | Law Dispatch |
| 7552 | 1d80 | TE | MD NRP Area 1 T1 | Natural Resources Police - Area 1 Tac 1 (used for Dispatch) | Law Tac |
| 7553 | 1d81 | TE | MD NRP Area 1 T2 | Natural Resources Police - Area 1 Tac 2 | Law Tac |
| 7554 | 1d82 | TE | DC MIC-1 | Marine Interop Channel 1 Patch (from DC P25 system) | Interop |
| 7556 | 1d84 | T | MD DNR Hydro | Hydrographic Ops | Public Works |
| 7557 | 1d85 | TE | MD NRP Area 2 | Natural Resources Police - Area 2 (Caroline/Dorchester/Kent/Queen Anne/Talbot) | Law Dispatch |
| 7558 | 1d86 | TE | MD NRP Area 2 T1 | Natural Resources Police - Area 2 Tac 1 (used for Dispatch) | Law Tac |
| 7559 | 1d87 | TE | MD NRP Area 2 T2 | Natural Resources Police - Area 2 Tac 2 | Law Tac |
| 7565 | 1d8d | T | MD DNR E PkOpsCl | East Park Ops Call | Public Works |
| 7566 | 1d8e | T | MD DNR PVSP N Op | Patapsco Valley State Park - North Ops (Hollofield, McKeldin, Pickall) | Public Works |
| 7567 | 1d8f | T | MD DNR RocksAdm | Rocks State Park - Admin | Public Works |
| 7570 | 1d92 | T | MD DNR Rocks SP | Rocks State Park Ops | Public Works |
| 7571 | 1d93 | T | MDDNRInteropCall | Interop Call | Interop |
| 7577 | 1d99 | T | MD DNR CSF Ops | Cedarville State Forest Ops | Public Works |
| 7578 | 1d9a | T | MD DNR SMdRecCom | Southern Maryland Recreational Complex Ops | Public Works |
| 7581 | 1d9d | T | MD DNR ASP Admin | Assateague State Park Admin | Public Works |
| 7588 | 1da4 | T | MD NRP Inserv 1 | Inservice 1 (Training - Instructors) | Law Talk |
| 7589 | 1da5 | T | MD NRP Inserv 2 | Inservice 2 (Training) | Law Talk |
| 7590 | 1da6 | T | MD NRP Inserv 3 | Inservice 3 (Training) | Law Talk |
| 7592 | 1da8 | T | MD DNR JISP Ops | Janes Island State Park Ops | Public Works |
| 7594 | 1daa | T | MD DNR PRSP Ops | Pocomoke River State Park Ops | Public Works |
| 7597 | 1dad | T | MD DNR BillBurtn | Bill Burton Fishing Pier State Park Ops | Public Works |
| 7599 | 1daf | T | MD DNR TuckCmplx | Tuckahoe Complex (Tuckahoe State Park/Martinak State Park) | Public Works |
| 7600 | 1db0 | T | MD DNR SPSP Adm | Sandy Point State Park - Admin | Public Works |
| 8371 | 20b3 | T | MD DNR SPSP Ops | Sandy Point State Park Ops | Public Works |
| 8374 | 20b6 | T | PtLookoutSP Adm | Point Lookout State Park Admin | Public Works |
| 8375 | 20b7 | T | PtLookoutSP Ops | Point Lookout State Park Ops | Public Works |
| 8376 | 20b8 | T | MD DNR SenSP Adm | Seneca State Park Admin | Public Works |
| 8377 | 20b9 | T | MD DNR SenSP Ops | Seneca State Park Ops | Public Works |
| 8379 | 20bb | T | MD DNR GreenbrSP | Greenbrier State Park Ops | Public Works |
| 8381 | 20bd | T | MD DNR NGSP Ops | New Germany State Park Ops | Public Works |
| 8383 | 20bf | T | MD DNR FtFdkSP | Fort Frederick State Park Ops | Public Works |
| 8384 | 20c0 | T | MD DNR DpCrLkAdm | Deep Creek Lake State Park - Admin | Public Works |
| 8385 | 20c1 | T | MD DNR DpCrLkOps | Deep Creek Lake State Park Ops | Public Works |
| 8387 | 20c3 | T | MD DNR Rocky Gap | Rocky Gap State Park Ops | Public Works |
| 8388 | 20c4 | T | MD DNR HMSP Adm | Herrington Manor State Park - Admin | Public Works |
| 8389 | 20c5 | T | MD DNR ASP Beach | Assateague State Park Beach | Public Works |
| 8392 | 20c8 | TE | MD NRP Trng Acad | Natural Resources Police - Training Academy | Law Talk |
| 8399 | 20cf | T | MD NRP ResrvOffc | Natural Resources Police - Reserve Officers | Law Tac |
| 14201 | 3779 | T | MDDNR PVSP S Adm | Patapsco Valley State Park - South Admin | Public Works |
| 14204 | 377c | T | MD DNR PVSP S Op | Patapsco Valley State Park - South Ops (Avalon, Glen Artney, Orange Grove) | Public Works |
| 14206 | 377e | T | MD DNR GnpwdrOps | Gunpowder Falls State Park Ops | Public Works |
| 14207 | 377f | T | MD DNR GpwdrHOps | Gunpowder Falls State Park - Hammerman Ops | Public Works |
| 14208 | 3780 | T | MD DNR NoPt SP | North Point State Park Ops | Public Works |
| 14211 | 3783 | T | MD DNR Pks Evt1 | Parks Event 1 | Public Works |
| 14212 | 3784 | T | MD DNR Pks Evt2 | Parks Event 2 | Public Works |
| 14213 | 3785 | T | MD DNR Pks Evt3 | Parks Event 3 | Public Works |
| 14214 | 3786 | T | MD DNR Pks Evt4 | Parks Event 4 | Public Works |
| 14215 | 3787 | T | MD DNR Pks Evt5 | Parks Event 5 | Public Works |
| 14216 | 3788 | T | MD DNR Pks Evt6 | Parks Event 6 | Public Works |
| 14217 | 3789 | T | MD DNR Pks Evt7 | Parks Event 7 | Public Works |
| 14218 | 378a | T | MD DNR Pks Evt8 | Parks Event 8 | Public Works |
| 14220 | 378c | T | MDDNR ForestNOp1 | Forestry Northern Ops 1 | Public Works |
| 14221 | 378d | T | MDDNR ForestWOp1 | Forestry Western Ops 1 | Public Works |
| 14222 | 378e | T | MDDNR ForestEOp1 | Forestry Eastern Ops 1 | Public Works |
| 14223 | 378f | T | MDDNR ForestSOp1 | Forestry Southern Ops 1 | Public Works |
| 14225 | 3791 | T | MD DNR DCL NRMA | Deep Creek Lake Natural Resources Management Area | Public Works |
| 14228 | 3794 | T | MD DNR Wildlfe E | Wildlife - East | Public Works |
| 14237 | 379d | T | MD DNR SAR S | Search and Rescue - South | Emergency Ops |
| 14243 | 37a3 | T | MD DMR CunFallSP | Cunningham Falls & Gambrill State Parks | Public Works |
| 14244 | 37a4 | T | MD DNR IMT Commn | Incident Management Team (IMT) Common | Emergency Ops |
| 14246 | 37a6 | T | MD DNR IMT Ops 1 | Incident Management Team (IMT) Ops 1 | Emergency Ops |
| 14247 | 37a7 | T | MD DNR HMSP Ops | Herrington Manor State Park Ops (Herrington Manor State Park/Swallow Falls State Park) | Public Works |
| 14248 | 37a8 | T | MD DNR SusSP Ops | Susquehanna State Park Ops | Public Works |
| 14250 | 37aa | T | MDDNR ForestNOp2 | Forestry Northern Ops 2 | Public Works |
| 14252 | 37ac | T | MDDNR ForestSOp2 | Forestry Southern Ops 2 | Public Works |
| 14254 | 37ae | T | MDDNR ForestWOp2 | Forestry Western Ops 2 | Public Works |
