California Ports Widen Use of ‘Sock on Stack’ Emissions Capture System for At-Berth Ships 25 April 2024 The STAX system is to be used at the ports of Benicia, Los Angeles, Long Beach and Oakland.Author: Capt. Johnhttps://shipandbunker.com/news/am/342424-california-ports-widen-use-of-sock-on-stack-emissions-capture-system-for-at-berth-ships