For the hearing portion of the disability tax credit, the language is very ambiguous, and audiologists often find themselves wondering if they should be certifying a given individual. The language in there basically asks if the individual is markedly restricted in an environment that's quiet with somebody they know. The problem is that we don't live in a quiet environment, only speaking to people we know, so that language really needs to be changed. That will then provide a bit more assurance that the audiologist—or the physician or nurse practitioner, who can certify certain parts of the disability tax credit—is doing the right thing and helping the client when it's necessary.
Anecdotally, I have heard from a number of people that patients do a little shopping around to see who will actually sign this for them, because a lot of people just don't feel comfortable when they have to use those criteria.