In December 1952 the West German legislature voted to abolish all national speed limits, seeing them as Nazi relics,[42] reverting to State-level decisions. National limits were reestablished incrementally. The 50 km/h (31 mph) urban limit was enacted in 1956, effective in 1957.[43] The 100 km/h (62 mph) limit on rural roads—except autobahns—became effective in 1972.