The Los Angeles City Council voted to allow construction of a crude oil import terminal at the Port of Los Angeles on 15 April.
The Plains All American Pipeline terminal could handle up to 25% of Southern Californias petroleum imports.
It will be built on Pier 400 and use existing pipelines owned by Plains All American.
The facility will have initial capacity of 350,000 barrels of oil per day.
Storage tanks will hold up to 4 million barrels awaiting distribution to nearby refineries.
Plains All American estimates its cost for the construction project at $468 million (359 million).