According to AllAcronyms.com, RMP stands for Radio Motor Patrol Car. The abbreviated term is utilized by police, law enforcement, and the government. The practice of using that acronym started in the 1930s when police cars started having radio receivers installed. The automobiles that had this new feature were referred to as Radio Motor Patrol cars or RMP to save time (via PoliceNY.com).
This attention to detail regarding the show’s authenticity isn’t surprising, given how well the show is known for accurately depicting policing. One of the main reasons they are able to accomplish this feat is with the help of their technical adviser, retired first-grade NYPD detective James Nuciforo. His background has helped keep the series grounded and arguably enhances the experience for viewers. While Nuciforo does give them plenty of notes, he told CBS 58 that certain things he mentions wouldn’t make the cut. “I also know that this is a television show, it’s not a documentary. I give them reality, and then we work with it from there. They can’t use everything I give them.” But considering how long the show’s successful run has endured, it would seem like what they are taking from their technical adviser is working out immensely.
While there are still most assuredly things about “Blue Bloods” fans may not be aware of, at least the meaning of the acronym RMP will not be one of them any longer.