Are there any other rules for libraries lending and copying resources for people with a disability?

The law makes an exception for people with a disability. In certain cases, libraries can make copies and provide them to people with a disability. This exception only applies if there is a direct connection to the disability, it is necessary to make the copies because of the disability and there is no commercial interest. However, fair compensation must be paid to the creator. It is far from clear what exactly is considered a disability and when exactly it is necessary to make the copies.