The revised MIG and OCF-18 reflect the recent change made to the SABS in which a pre-existing condition must have been documented by a health practitioner prior to the accident. The change is reflected in Section 4 of the MIG which deals with impairments that do not fall under the guideline. As for the OCF-18, changes have been made to the introductory Note box on page 1 and to the second question in Part 4.
Revised MIG is here.
Revised OCF-18 is here.
SABS amendment to section 38 (3) (c) (i) is found here.