San Francisco’s board of supervisors voted Tuesday to ban the sale of e-cigarettes, and companies operating in that space have both political and legal courses they can take to reverse the ban, according to experts in the field.

San Francisco Mayor London Breed has 10 days to sign the ordinance. The ordinance, which  could take effect as soon as the beginning of 2020, will bar tobacco shops from selling any e-cigarette product that has not gone through the Food and Drug Administration premarket approval process. No e-cigarette or vaping product has gone through that process. The ordinance will also ban those products from being shipped into the city.