6. After regulation 69 there shall be inserted—
69A.—(1) There are prescribed for the purposes of section 94(5)(b)(ii) of the Traffic Act(1) (examination of a licence applicant or holder by an officer of the Secretary of State) the following disabilities—
(a)impairment of visual acuity or of the central or peripheral visual field;
(b)a disability consisting of any one or more of the following—
(i)the absence of one or more limbs,
(ii)the deformity of one or more limbs,
(iii)the loss of use of one or more limbs whether or not progressive in nature, and
(iv)impairment of co-ordination of movement of the limbs or of co-ordination between a limb and the eye;
(c)impairment of cognitive functions or behaviour.
(2) In paragraph (1)(b), a reference to a limb includes a reference to part of a limb, and the reference to loss of use in relation to a limb includes a reference to impairment of limb movement, power or sensation.”.
I.e. the Road Traffic Act 1988.