Islamic scholars consulted by a leading producer of cultivated meat say that the newfangled protein — which is grown from animal cells and doesn't require animals to be slaughtered — can be halal, or permissible under Muslim law.
And the Jewish Orthodox Union this month certified a strain of lab-grown chicken as kosher for the first time, "marking a significant step forward for the food technology's acceptance under Jewish dietary law," as the Times of Israel put it.
There's no Jewish or Islamic pope so what a lab-grown meat producer has to do is simply find a Imam or a Rabbi that will agree to say it's halal or kosher. They can pay them nice consulting fee for that. I've seen kosher light switches and cell phones before. Other Rabbis will say it's not actually kosher but everyone can choose which rabbi to follow.
There are a handful of organizations that will certify your product as kosher. Some people trust one organization or another, some trust any of em, some use their best judgement in general. A large organization of Rabbim agreeing on its kashrut status could hold a lot of sway, though, and be a catalyst to start a conversation over many tables of "Should we eat this?"
Now, what I'm curious of is what the meat qualifies as.
Yes, but which scholars? For some things there's a consensus - pork is haram - but for others there's not, and different scholars will contradict each other. I'm guessing this is still in the early stages where there's no consensus.
That being said, I hope they decide cultured versions of halal meats are halal because there's no good reason not to.