(a) There is a presumption that an employee's claim for compensation as a result of post-traumatic stress disorder is within the provisions of this chapter if the employee

1. (1) is employed or was employed in an occupation listed in (b)(2) of this section; and
2. (2) while employed or within three years after the last date of the employee's employment, receives a diagnosis by a psychiatrist or a psychologist of post-traumatic stress disorder.

(b) The presumption of compensability described in (a) of this section

1. (1) may be rebutted by a preponderance of the evidence that the employee's post-traumatic stress disorder resulted from factors that were not work related;

2. (2) applies only to the following employees:

   1. (A) correctional officers;
   2. (B) emergency medical technicians;
   3. (C) emergency medical dispatchers;
   4. (D) firefighters;
   5. (E) mobile intensive care paramedics licensed under AS 18.08;
   6. (F) peace officers; and
   7. (G) employees who are certified under state law to perform emergency medical services; and
3. (3) notwithstanding AS 23.30.100(a), applies for a period of three years following the last date of the employee's employment.

(c) In this section,

1. (1) “correctional officer” has the meaning given in AS 18.65.290;
2. (2) “emergency medical dispatcher” has the meaning given in AS 18.08.200;
3. (3) “emergency medical service” has the meaning given in AS 18.08.200;
4. (4) “emergency medical technician” has the meaning given in AS 18.08.200;
5. (5) “firefighter” has the meaning given in AS 23.30.121(f);
6. (6) “peace officer” has the meaning given in AS 11.81.900(b).