the Indiana law has some differences from the federal law, and most of the state laws, that critics say are significant, including a provision explicitly stating that it applies to the exercise of religious beliefs by businesses as well as individuals and religious groups. The idea that a for-profit business has religious rights, and can cite them in contesting government action, was not widely considered until recently. But last year the Supreme Court upheld that principle in the case Burwell v. Hobby Lobby Stores.
Another difference between Indiana’s law and most similar ones is that it says businesses can use religious freedom as a defense against lawsuits brought by individuals, not just those filed by the government.