 | Landscape Technology | | Germantown | HT/314 | 240-567-7722 |
| | Language Lab | | Rockville | MT/20 | 240-567-4160 |
| Languages | | Germantown | HS/178 | 240-567-7754 |
| | Languages | | Rockville | MT/512 | 240-567-7407 |
| | Languages | | Takoma Park/Silver Spring | RC/201 | 240-567-1673 |
| | Learning Communities | | Takoma Park/Silver Spring | PF/220 | 240-567-1369 |
| Learning Skills Support Services | | Takoma Park/Silver Spring | HC/241 | 240-567-5537 |
| | Legal Assistant | | Takoma Park/Silver Spring | IS/206 | 240-567-1343 |
| Legal Assistant | | Takoma Park/Silver Spring | IS/200 | 240-567-1613 |
| | Library | Reference | Germantown | HS/110 | 240-567-7853 |
| Library | Periodicals | Takoma Park/Silver Spring | RC/215 | 240-567-1536 |
| Library | Acquisitions | Germantown | HS/212D | 240-567-7854 |
| | Library | Circulation (Nonrecorded) | Germantown | HS/110 | 240-567-7858 |
| | Library | Circulation (Recorded Message) | Germantown | HS/110 | 240-567-7850 |
| | Library | Periodicals | Germantown | HS/212B | 240-567-7855 |
| | Library | TDD for Hearing Impaired | Germantown | HS/110 | 240-567-1971 |
| Library | Circulation (Nonrecorded) | Rockville | MT/107 | 240-567-7117 |
| | Library | Circulation (Recorded Message) | Rockville | MT/107 | 240-567-5067 |
| | Library | Interlibrary Loan | Rockville | MT/111 | 240-567-7118 |
| | Library | Periodicals | Rockville | MT/115 | 240-567-5254 |
| | Library | Reference | Rockville | MT/112 | 240-567-7130 |
| | Library | Reserve Desk | Rockville | MT/107 | 240-567-7124 |
| | Library | Acquisitions | Rockville | MT/303 | 240-567-7137 |
| | Library | Cataloging | Rockville | MT/303 | 240-567-7140 |
| | Library | Processing | Rockville | MT/303 | 240-567-7143 |
| Library | Acquisitions | Takoma Park/Silver Spring | RC/215 | 240-567-1536 |
| | Library | Circulation | Takoma Park/Silver Spring | RC/215 | 240-567-1540 |
| | Library | Periodicals | Takoma Park/Silver Spring | RC/215 | 240-567-1540 |
| | Library | Reference | Takoma Park/Silver Spring | RC/215 | 240-567-1536 |
| | Library | TDD for Hearing Impaired | Takoma Park/Silver Spring | RC/215 | 240-567-1546 |