The specifics of President Donald Trump’s policy shift on Cuba are still hazy. But lawyers with Cuba practices are clear on one thing: The anticipated U.S.-Cuba business boom will have to wait.

In June, the Trump administration partially reversed some Obama administration rapprochement efforts after the long-running U.S.-Cuba embargo, cracking down on tourism and other business dealings that could profit Cuban military-linked companies. The new directive limits nonacademic educational travel to group trips and doesn’t permit the self-directed individual travel allowed by President Barack Obama but still allows Cuban-Americans to visit family and send remittances.