Montana’s experience with no speed limits was cited as evidence to implement speed restrictions in Arizona. Center Square reported that the Arizona state legislator, proposing lifting daytime speed restrictions on rural interstate highways claimed that in the mid-1990s when Montana instituted no-speed zones for a few years, officials found two to three times fewer fatalities per vehicle mile traveled than in speed zones. Prior to 1974, Montana had a speed limit of “reasonable and prudent.” T...