The Brooklyn to Altona (Qenos) Pipeline is a transmission pipeline located in central Victoria near Melbourne. The pipeline is owned and operated by the APA Group. 

The pipeline is 5 km in length, has a nominal diameter of DN250 and a capacity of 5 TJ/day. The pipeline currently transmits natural gas from the APA Group’s Brooklyn Compressor Station to the Qenos Olefins chemical plant in Altona. This pipeline is connected to the Victorian Transmission System (VTS)

The Qenos Pipeline is currently a non-scheme pipeline, and is subject to the access regime for non-scheme pipelines under Part 10 of the NGR. National Gas Rules (NGR). It was previously subject to the access regime for non-scheme pipelines under the former Part 23 of the NGR, which was replaced by Part 10.

On 13 December 2017, the AER granted a five year Category 2 exemption under Part 23 of the NGR. On 30 November 2022, the AER granted a further five year Category 2 exemption under Part 23 of the NGR. Due to reforms to the NGR, the exemption transitioned to a Category 2 exemption under Part 10 of the NGR.

The Brooklyn to Altona Pipeline was initially commissioned in 1976. In October 2014, the previously ethane supplying pipeline was refitted to supply natural gas.