5 M.R.S. §18501: Definition

As used in this article, unless the context otherwise indicates, "disabled" means mentally or physically incapacitated:

1. Permanent. To the extent that it is impossible for a person to perform the duties of the person's employment position and the incapacity can be expected to be permanent; and

2. Revealed by examination. Such that the incapacity will be revealed by medical examination or tests conducted in accordance with section 18503.