Whether, with reference to the legislative requirement that the instrumentation that is used in the e-tolling system to determine the dimensions of vehicles for the purpose of identifying their class must be certified and verified under the Legal Metrology Act, Act 9 of 2014, the relevant (a) certificates and (b) verifications were issued at the commencement of the e-tolling system in Gauteng; if not, (i) on what date, (ii) from whom was written permission to use the instrumentation currently installed in Gauteng received and (iii) what (aa) conditions, (bb) limitations, (cc) requirements and (dd) period of use were specified in each case; if so, (aaa) on what date and (bbb) by whom were the relevant (aaaa) certificates and (bbbb) verifications issued?