Hi.
NZ H & S Regs 1995 Reg 19 & 20
Self-propelled mobile mechanical plant
(1) Every employer must, so far as is reasonably practicable, ensure that every
self-propelled mobile mechanical plant to which this regulation applies is fitted
with a roll-over protective structure and a seat belt.

Regulation 20 does not apply to any self-propelled mobile mechanical plant
that has been designed to be used on level ground at all times, if the employer
has, so far as is reasonably practicable, taken steps to ensure that every employee
at every workplace under the control of that employer so uses the self-propelled
mobile mechanical plant.

Hi. Ring Rodger at Site Safe 0212422078. Their courses are good and he is the best.

Hi. Some facts.
It is not law to test and tag, but it is a way to take Reasonably Practicable Steps to ensure safety.
A competent person can test and tag, why don't you train someone up to do it. Buy a PAT tester, attend a four hour training course, practise, get re-assessed and log competency.
AS/NZS 3760 says more than 90% of faults are found by visual inspection, less than 10% by the PAT tester.
Identify the appliances and log a visual check in a register, monthly.