The FDA has issued its first ever approval on a safety consultation for lab-grown fish. That makes Wildtype only the fourth company to get approval from the regulator to sell cell-cultivated animal products, and its cultivated salmon is now available to order from one Portland restaurant.

Wildtype announced last week that the FDA had sent a letter declaring it had “no questions” about whether the cultivated salmon is “as safe as comparable foods,” the customary final step in the FDA’s approval process for lab-grown animal products. The FDA has sole responsibility for regulating most lab-grown seafood, whereas the task is shared with the United States Department of Agriculture (USDA) for cultivated meat.

The FDA’s pre-market safety consultation is voluntary, but is “helpful for marketability,” IP lawyer Dr. Emily Nytko-Lutz, who specializes in biotechnology patents, explained to The Verge. “There are other pathways involving self-affirmation of safety as well as a longer food additive review process, but the FDA’s authorisation with a ‘No Questions’ letter is a middle ground.”

Wildtype salmon is now on the menu at Haitian restaurant Kann in Portland, Oregon, and the company has opened a waitlist for the next five restaurants to stock the fish. It joins Upside Foods and Good Meat, two companies with permission to sell cultivated chicken in the US, while Mission Barns has been cleared by the FDA but is awaiting USDA approval for its cultivated pork fat. At a state level, the situation is more complicated, with eight states issuing bans on lab-grown meat as the technology becomes a conservative talking point.