Rules and Regulations

Rules and Regulations for Chapter 375-3-5

375-3-5-.06 Musculoskeletal Performance

While in many cases the best evaluation of driving performance still remains the practical road test, in order to insure adequate manual control in driving an automobile the following guidelines for musculoskeletal performance should be used.

(a) Motor Power Requirements.

1. The strength of muscles required to perform the task of driving should be determined. This determination is based on two factors: the force of gravity and the resistance applied by the examining physician to the muscle group being tested. A determination should be made based on the physicians interpretation as to whether the strength is:

(i) Normal--Complete range of motion against gravity with full resistance.

(ii) Good--Complete range of motion against gravity with some resistance.

(iii) Fair--Complete range of motion against gravity without resistance.

(iv) Poor--Complete range of motion with gravity eliminated.

(v) Trace--Evidence of slight contractility, no joint motion.

(vi) Zero--No evidence of contractility.

2. Impairment to driving caused by motor power deficiency may be group as follows:

(i) Group A.

(I) A normal muscle power as tested at all of the following joints:

I. Right ankle dorsi and plantor flexion.

II. Right Knee extension.

III. Hip flexion and extension.

IV. Grip--both hands.

V. Both wrists--extension and flexion.

VI. Both elbows--extension and flexion.

(II) At least good muscle power in flexion of the right knee.

(ii) Group B.

(I) Muscle power classified as good or better at any one or more of the following joints:

I. Right ankle dorsi and plantor flexion.

II. Right knee extension.

III. Hip flexion and extension.

IV. Grip--both hands.

V. Both wrists--extension and flexion.

VI. Both elbows--extension and flexion.

(II) At least fair muscle power in flexion of right knee.

(iii) Group C.

(I) Fair muscle power at any one or more of the following joints as listed in Group Aa and Group Bb.

(II) Poor or trace muscle power in flexion of the right knee.

1. Table Motor Power and Acceptable Level of Function for Driver Licensure.

  Class C Class M Class B
A Yes Yes Yes
B Yes Yes Individual Consideration
C Individual Consideration No No
  Class A Periodic Reevaluation Limited License
A Yes No No
B Individual Consideration Yes Yes
C No Yes Yes

(b) Active Range of Motion of Joints. A driver must have adequate mobility of the joints that are important to the safe operation of a motor vehicle. The range of motion necessary will vary as to the specific vehicle and as to the size of the individual evaluation of this category of driver impairment must be based on individual consideration by the examining physician and on the performance of the road test.

(c) Amputations. Whether or not an amputation will impair the ability to drive an automobile safely should be decided if brought to the medical board, on an individual basis.

Authority: O.C.G.A. ยงยง40-5-4, 40-5-34
Filed Date: 4/18/2006
Effective Date: 5/8/2006