OFSC (Office of Federal Safety Commissioner) Audit criterion H16.8 requires a system to be in place to define the competency requirements for the operation of mobile plant, which may be a combination of licences, formal training through an RTO and/or a Verification of Competency (VOC) process.

VOC is defined within the OFSC Evidence guide as ‘a method of documented evaluation of the skill level of a person against defined competency standards in order to evaluate the person’s ability to carry out the relevant activity or works’.

Accredited companies are required to ensure that workers operating mobile plant are competent, and that there is a system in place to ensure operators of mobile plant have met the minimum legislative requirements.


The following can be used as evidence of competency:

  • High-risk work licence issued by a  State or Territory under the National Certification System as per the legislation; or
  • Where a High-Risk Work Licence is not required by legislation.
  • Licence or certificate of competency issued under previous State or Territory legislation for which there is no longer a High-Risk Work licence required e.g. load shifting equipment or;
  • Statement of attainment or certificate issued by a  Registered Training Organisation (RTO) for the successful completion of the appropriate unit of competency in the Nationally Recognised Training (NRT) package or;
  • Evidence of formal VOC assessment against defined competency standards, which should: be completed, or confirmed as having been completed, by the accredited company to an acceptable level, such as the relevant NRT, internal VOC process, or equivalent; include a detailed and documented assessment standard; be completed by a person (or persons) who meets the documented competency as defined by the company to conduct a VOC assessment; and be evidenced by a signed, completed VOC assessment.