Forms? Ha!Not even that. You can buy a "service dog" vest online, all you need is a way to pay for it. No forms, no certification, nothing.
Wife and I are in a camping group and there are at least two people in the group who have bragged that they get to take their dogs anywhere because they bought those "service animal" vests even though the dogs are not trained in any way to provide a "service."
People who abuse the system like that are just begging for the government to step in and start regulating it.