Upon application of a firefighter receiving a disability benefit, irrespective of the date of retirement, whether service or nonservice connected, or upon the board's own motion, the disability shall be reviewed by the board to determine whether a change of condition has occurred which would justify increasing or decreasing the disability benefit. The board may make such order as is appropriate. Such review shall only occur once every three (3) years after the date of the first disability payment.
Idaho Code § 72-1452