C (New York City Subway service)

The C Eighth Avenue Local is a 19-mile-long (31 km)^: 1 rapid transit service in the B Division of the New York City Subway. Its route emblem, or "bullet", is blue since it is a part of the IND Eighth Avenue Line in Manhattan.

The C operates during daytime hours only between 168th Street in Washington Heights, Manhattan and Euclid Avenue in East New York, Brooklyn, making all stops along the full route; overnight service is replaced by the A train, which makes all stops along the C's route.

Historically, most C service ran only during rush hours, along the IND Concourse Line to Bedford Park Boulevard in the Bronx and later along the IND Rockaway Line to Rockaway Park–Beach 116th Street in Queens. Prior to 1985, the local C service was referred to as the CC, with the C designation reserved for a complementary express service that was discontinued in 1949. The CC was once the only route to serve the Bronx, Manhattan, Brooklyn, and Queens in a single trip. Outside of rush hour, local service in Manhattan was usually provided by the AA, later relabeled K, which ran between 168th Street and Chambers Street/World Trade Center. In 1988, the K and C were consolidated into one service, and during the 1990s, the C's routing was altered to create the current service pattern. A 2015 study of the route found that the C had a daily ridership of 250,000.^: 1