California is set to officially ban commercial fishermen from using drift nets off its coasts.

The state legislature passed a bill Thursday that would make it ultimately unlawful for commercial fishers to use shark or swordfish drift gillnets, as well as troll lines and hand lines that are more than 900 feet in length, unless they are used as set lines.

The law will set up a transition program to phase out fishermen's use of shark or swordfish drift nets by offering incentives to those who voluntarily give up their previously received permit.

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The state would fund the transition by using $1 million in funds from its Ocean Protection Council for whale and sea turtle entanglement.

Drift nets are frequently linked to the deaths of sea turtles and marine mammals including whales and sea lions. Fishermen use them by hanging the nets like walls above the sea floor, indiscriminately catching whatever flows into them.

A video released by conservation groups in April showing visuals of the dead animals caught in the nets in part helped spur the senate bill.

In late April, California Sens. Dianne Feinstein Dianne Emiel FeinsteinTrump faces tricky choice on Supreme Court pick The Hill's Morning Report - Sponsored by Facebook - Trump previews SCOTUS nominee as 'totally brilliant' Abortion stirs GOP tensions in Supreme Court fight MORE (D) and Kamala Harris Kamala HarrisHundreds of lawyers from nation's oldest African American sorority join effort to fight voter suppression Biden picks up endorsement from progressive climate group 350 Action 3 reasons why Biden is misreading the politics of court packing MORE (D), along with Sen. Shelley Moore Capito Shelley Wellons Moore CapitoCongress must finish work on popular conservation bill before time runs out Second GOP senator to quarantine after exposure to coronavirus GOP senator to quarantine after coronavirus exposure MORE (R-W.Va.), introduced federal legislation that would ban the use of nets specifically along California's coast.

“The use of drift nets to target swordfish harms too many endangered or protected marine animals and should be phased out,” Feinstein said in an emailed statement to the Orange County Register. “It’s unacceptable that a single California fishery that uses this type of drift net is killing more dolphins and porpoises than the rest of the West Coast combined.”

The California state bill now awaits Gov. Jerry Brown's (D) signature. He has until Sept 30. to sign it into law.