Article 16

for sub-paragraph (a) there shall be substituted the following:

“(a)

engineering plant shall be used on a road only:

(i)

for testing or demonstration purposes or delivery on sale;

(ii)

for proceeding to or returning from a manufacturer or repairer for repair or maintenance;

(iii)

for proceeding to or from the site of engineering operations or when actually engaged in such operations;

(b)

engineering plant may carry its own necessary gear and equipment but no other load except;

(i)

engineering plant other than a mobile crane when actually engaged on the construction, maintenance or repair of roads may carry materials which it is specifically designed to treat while being carried on the vehicle or materials which have been excavated and raised from the ground by apparatus on the motor vehicle or trailer, and

(ii)

a mobile crane when actually engaged in engineering operations may lift or transport a load;”

proviso (i) to sub-paragraph (f) shall be omitted.