| A. In order to reduce litigation and establish more |
| certainty and uniformity in the rating of permanent |
| impairment, the board shall establish by rule a schedule for |
| determining the existence and degree of permanent impairment |
| based upon medically or scientifically demonstrable |
| findings. The schedule must be based on generally accepted |
| medical standards for determining impairment and may |
| incorporate all or part of any one or more generally |
| accepted schedules used for that purpose, such as the |
| American Medical Association's "Guides to the Evaluation of |
| Permanent Impairment." Pending the adoption of a permanent |
| schedule, "Guides to the Evaluation of Permanent |
| Impairment," 3rd edition, copyright 1990, by the American |
| Medical Association, is the temporary schedule and must be |
| used for the purposes of this subsection. Notwithstanding |
| this paragraph, in assessing injuries involving the spinal |
| column, the schedule is the American Medical Association's |
| "Guides to the Evaluation of Permanent Impairment," 5th |
| edition, copyright 2001. |