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: R
| Type | High | Full Name |
| RAM | Southern Garrett Athletic Association | |
| RAV | 6869 | Ravens All Community Team Foundation |
| RB | Riviera Beach Volunteer Fire Company, Inc. | |
| RBC | 0115 | Rosedale Baptist Church |
| RBF | 0009 | Rooted Bible Fellowship Church |
| RC | 0003 | Walkersville Volunteer Rescue Company No. 24 |
| RCP | MDDC Society for Respiratory Care | |
| RD | Ridge Volunteer Fire Department | |
| RDG | Rolling Road Golf Club | |
| RE | 1151 | Maryland Association of Realtors, Inc. |
| RET | Retired Enlisted Association Chesapeake Chapter 24 | |
| RF | Bowie Volunteer Fire and Rescue, Inc. | |
| RFD | Rosedale Volunteer Fire Company | |
| RFF | 0163 | Anne Arundel County Retired Fire Fighters Association |
| RFL | 0005 | American Cancer Society |
| RG | 1094 | NASA Goodard Employees Welfare Association |
| RGY | 0024 | Ridgely Volunteer Fire Department |
| RHV | 0006 | Rock Hall Volunteer Fire Co. |
| RI | 0418 | Rotary International |
| RIT | Rochester Institute of Technology | |
| RK | Red Knights International Motorcycle Club | |
| RL | 0009 | Choptank River Lighthouse |
| RM | 0002 | Community Fire Company of Rising Sun Inc. |
| RME | 0091 | Rocky Mountain Elk Foundation |
| RMS | The Former Students and Friends of Robert Moton School, Inc. | |
| RN | 2921 | Maryland Nurses Association |
| RO | 0077 | Reserve Officers Anne Arundel County Police Department |
| ROA | Reserve Officers Association of the US | |
| ROJ | 0116 | Royal Order of Jesters |
| ROW | 0007 | Baltimore Rowing Club |
| RP | Roland Park Country School | |
| RPF | 0085 | Retired DC Police & Firemen |
| RQ | 0040 | Days End Farm Horse Rescue |
| RR | 0217 | Council of Baltimore Ravens |
| RS | 0164 | Baltimore County Retired Fire Officers and Fire Fighters |
| RSC | Ranger Social Club | |
| RSQ | 0082 | Aussie Rescue and Placement Helpline, Inc. |
| RT | Maryland Society of Radiologic Technologists | |
| RTL | 0345 | Maryland Right To Life, Inc. |
| RTR | 0068 | University of Alabama |
| RU | 0072 | Rutgers University Alumni Relations |
| RUN | 0817 | Road Runners Club of America |
| RV | 0095 | Rockville Volunteer Fire Department, Inc. |
| RW | 0155 | Georgia Tech Alumni Association |
| RX | 0025 | Maryland Pharmaceutical Association |
