GRP stands for 'Groups Promoting Road Safety'. MADD, or Mothers Against Drunk Driving, is an example of such a group. MADD was founded in 1980 and works to raise awareness about the dangers of drunk driving and to advocate for stricter laws and enforcement against it. Other GRPs include organizations that focus on educating drivers about the importance of wearing seatbelts, obeying speed limits, and avoiding distracted driving. These organizations work to make roads safer for everyone by raising awareness and advocating for change.