Line 13 (Jade) (Portuguese: Linha 13–Jade), also known as the Guarulhos Train, is one of the seven lines operated by CPTM and one of the thirteen lines that make up the São Paulo Metro Rail Transport Network. The route is 12.2 kilometres (7.6 mi) long with a total of 3 stations. It connects the Engenheiro Goulart Station in São Paulo to the Guarulhos Airport Station, in the city of Guarulhos.

The Companhia Paulista de Trens Metropolitanos (CPTM) is a rapid transit and commuter rail company owned by the São Paulo State Department for Metropolitan Transports. It was created on 28 May 1992, from several railroads that already existed in Greater São Paulo, Brazil.