MADD stands for Mothers Against Drunk Driving. It is an organization that co-sponsors the "Decide to Ride" safety initiative. This initiative encourages people to make safe and responsible decisions when it comes to driving, particularly with regards to alcohol consumption.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Org. with the tagline "No More Victims". Explanations are generated by AI and may be inaccurate.