MDplates.com
MDplates is a joint venture between Jordan Irazabal of Delaware, and Scott Zillmer of Maryland. The goal is to find and photograph every special organization plate that Maryland offers.
Letter: J
| Type | High | Full Name |
| JC | Church of God Delmarva - DC | |
| JC | Maryland Jaycees | |
| JCS | 0033 | DFC Jason C Schwenz Foundation, Inc. |
| JD | 0050 | Job's Daughters |
| JFC | 0080 | Jarrettsville Volunteer Fire Co. |
| JH | 2295 | Johns Hopkins University Alumni Association |
| JHB | Johns Hopkins Bayview Medical Center | |
| JHT | Johns Hopkins Burn and Trauma | |
| JHU | 1839 | Johns Hopkins University |
| JM | Joppa Magnolia Volunteer Fire Company, Inc. | |
| JMU | 0125 | James Madison University Alumni Association |
| JP | 0021 | Last Boat of Salvation |
| JR | Junior Fire Company No. 2, Inc. | |
| JUN | Juniata College | |
| JW | 0120 | James Webb Space Telescope |
| JWB | Project Liberty Ship | |
| JWV | Jewish War Veterans of the USA | |
| JY | 0001 | LEO Supporter |
