Slewing, non-slewing and vehicle loading crane VOC assessments
Crane VOC Assessments in Perth & WA
- All crane classes
- CN to CO
- Available
- Machine hire
- Perth & Pilbara
- Onsite WA

Crane VOC in Perth & Western Australia
A crane Verification of Competency (VOC) confirms that an operator can safely and competently operate the crane to the required standard. STES assesses across the full range of crane classes, including non-slewing (CN), slewing cranes (C2, C6, C1 and open class CO) and vehicle loading cranes used on Perth and Western Australian sites.
Crane operation is high risk work, so operators must hold the current High Risk Work (HRW) licence for the relevant class before a VOC can be issued. Assessments are conducted at our Bibra Lake facility in Perth or onsite across WA, with machine hire available for the larger classes.
Cranes VOC types we assess
13 cranes Verification of Competency assessments across the STES, BHP, Rio Tinto and Woodside standards.
Browse other VOC types
We assess across the full range of plant and equipment used on Western Australian worksites.
Forklift & materials handling
Forklift (LF), telescopic handler (telehandler) and materials handling competency assessments.
Elevated work platforms
Elevated work platform (EWP), scissor lift and boom lift competency assessments.
Rigging & dogging
Dogging (DG) and rigging basic (RB), intermediate (RI) and advanced (RA) competency assessments.
Scaffolding
Scaffolding basic (SB), intermediate (SI) and advanced (SA) competency assessments.
Earthmoving & mobile plant
Excavator, front end loader, skid steer, grader, roller, water truck and haul truck competency assessments.
Assessment standards we work to
Need a VOC to a specific site standard? We assess to the major WA resource company frameworks.
Frequently asked questions: Cranes VOC
Which crane classes do you assess?
We assess non-slewing (CN) cranes, slewing cranes up to 20t (C2), 60t (C6), 100t (C1) and open class over 100t (CO), as well as vehicle loading cranes.
Do I need a crane licence before a crane VOC?
Yes. You must hold the current High Risk Work (HRW) licence for the relevant crane class before a VOC can be conducted. The VOC verifies your current competency on the machine.
Do you provide the crane for the assessment?
Machine hire can be arranged for the larger slewing crane classes. Where possible we prefer to assess onsite on the crane you operate, anywhere across Perth and Western Australia.
Ready to book a cranes VOC?
We assess at our Bibra Lake facility in Perth and onsite across Western Australia, with short-notice bookings available. Contact us with your equipment type and number of workers and we'll get you booked in.