The first tachographs at the start of the route recording equipment began to appear at the end of the 19th century and were mounted on locomotives. The first truck tachographs were created in the 1920s. Even before World War II during Hitler's time in Germany, a law was introduced requiring long-distance drivers to keep track of their time spent working on paper and doing so on similarly books used now in vehicles in Germany from 2.8 to 3.5 DMC. In the first half of the 1950s, regulations were introduced in Germany that all new trucks and buses were to be equipped with tachographs. In 1985 regulations were introduced requiring the use of tachographs for all new trucks throughout the European Union. In Poland, the rules on working time began to apply in 1992, the provisions of the AETR were introduced. Today the AETR is vilid, in Albania, Azerbaijan, Uzbekistan, Turkmenistan, Montenegro, Turkey, Macedonia, or Russia. Analogue tachographs were mounted on vehicles until May 1, 2006, after which date trucks may only be equipped with digital tachographs.