The R142 and R142A were the first "New Technology Train" production models to enter service on the A Division and on the entire New York City Subway. Both car classes entered service on July 10, 2000. These cars were based off the R110A prototype cars that operated between 1993 and 1999. The R142 cars were built by Bombardier and the R142A cars were built by Kawasaki. Both car types replaced the "Redbird" fleet (R26, R28, R29, R33, and R36 cars) that had been in service since the late 1950s. The R142 and R142A cars featured LED and LCD destination signs, electronic strip maps, interior LED displays to show the next stop and other information, automated announcements, enhanced fluorescent lighting for the train interiors, and screens in each operator cab allowing the train crew to troubleshoot issues more easily. In 2010, the R188 contract was awarded to Kawasaki to convert 380 R142A cars in to R188 cars and build an additional 126 new R188 cars. The R188 would be equipped with CBTC equipment for use on the 7 line, the first A Division line to have CBTC train signalling installed. The new cars included 38 new "C" cars that would be added to some 5 car sets of R142As to be able to continue running 11 car trains on the 7 line. The R188 cars entered service for revenue testing on November 9, 2013 and officially entered service on December 15, 2013. As of May 2020, the R142 operates on the 2, 4, and 5 lines, the R142A operates on the 4 line, and the R188 operates on the 7 line.