(CNN) The National Rifle Association is suing after the San Francisco Board of Supervisors labeled it a "domestic terrorist organization," according to the complaint.

Last week, the board passed a resolution calling for the city and county to "take every reasonable step to limit" San Francisco's "financial and contractual relationships" with vendors who do business with the NRA.

The resolution says the NRA "spreads propaganda that misinforms and aims to deceive the public about the dangers of gun violence."

It further states that the city and county of San Francisco should encourage other cities and states to adopt similar positions. San Francisco Mayor London Breed has 10 days from September 3 to sign, not sign or veto the resolution.

The lawsuit claims the board's new policy blacklists "anyone linked to the NRA."

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