Please take note of the following FTW article: http://www.ftwonline.co.za/article/129195/Are-you-ready-for-pending-high-cube-restrictions
For additional information please see the below extract from the relevant Government Gazette from 2011:
[Government Gazette No: 34621, Notice number 776, dated 20 September 2011
EXEMPTION OF MOTOR VEHICLES THAT DOES NOT COMPLY WITH THE
HEIGHT RESTRICTION IN TERMS OF THE
NATIONAL ROAD TRAFFIC ACT, 1996.
I, S’busiso Joel Ndebele, Minister of Transport, acting in terms of section 75(1)(d) of the National Road Traffic Act, 1996, exempt the operation of motors vehicles transporting an ISO Container from complying with the provision of regulation 224(b) of the National Road Traffic Regulations, 2000 under the National Road Traffic Act, 1996 (Act No. 93 of 1996) for the period of 7 (seven) years effective from the date of publication of this Notice until 1 January 2019.
S’busiso Joel Ndebele
MINISTER OF TRANSPORT