| 310 |
Baltimore to Columbia: |
Zone 2 |
| 311 |
Baltimore to Columbia: |
Zone 2 |
| 320 |
Baltimore to Elkridge: Baltimore to Jessup and Laurel: |
Zone 1 Zone 2 |
| 410 |
Baltimore to Bel Air: |
Zone 2 |
| 411 |
Baltimore to White Marsh: Baltimore to Bel Air: |
Zone 1 Zone 2 |
| 412 |
Baltimore to Bel Air: |
Zone 2 |
| 420 |
Baltimore to Edgewood: Baltimore to Aberdeen: Baltimore to Havre de Grace: |
Zone 2 Zone 3 Zone 3 |
| 901 |
Washington to Waldorf and La Plata: |
Zone 3 |
| 902 |
Washington to Dunkirk: Washington to Sunderland, Prince Frederick, and Fairgrounds: Washington to St. Leonard: |
Zone 2 Zone 3 Zone 4 |
| 903 |
Suitland Metro Station to Waldorf and Charlotte Hall: Washington to Waldorf and Charlotte Hall: |
Zone 2 Zone 3 |
| 904 |
Washington to Equestrian Center through Pindell: Washington to Owings and North Beach: |
Zone 2 Zone 3 |
| 905 |
Washington to Waldorf and Charlotte Hall: Washington to California: |
Zone 3 Zone 5 |
| 907 |
Washington to Waldorf and La Plata: |
Zone 3 |
| 909 |
Washington to Charlotte Hall: Washington to California: |
Zone 3 Zone 5 |
| 913 |
Waldorf to Suitland Metrorail Station: |
Zone 2 |
| 915 |
Silver Spring to Burtonsville, Scaggsville, and Columbia: Washington to Burtonsville, Scaggsville, and Columbia: |
Zone 2 Zone 3 |
| 921 |
Davidsonville to Prince George's County: Annapolis to Prince George's County: |
Zone 1 Zone 2 |
| 922 |
Washington to Annapolis: Washington to Kent Island: |
Zone 3 Zone 4 |
| 929 |
Silver Spring to Burtonsville, Scaggsville, and Columbia: Washington to Burtonsville, Scaggsville, and Columbia: |
Zone 2 Zone 3 |
| 950 |
Washington to Annapolis: Washington to Kent Island: |
Zone 3 Zone 4 |
| 991 |
Shady Grove to Rock Spring: Monocacy and Urbana to Shady Grove: Monocacy and Urbana to Rock Spring: Hagerstown to Monocacy and Urbana: Hagerstown to Shady Grove: Hagerstown to Rock Spring: |
Zone 2 Zone 2 Zone 3 Zone 3 Zone 4 Zone 5 |
| 995 |
Washington to Columbia, Ellicott City, and Clarksville: |
Zone 3 |