The New Zealand Certified Locator Program

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Self Assessment

The purpose of the Self-Assessment is to help you to understand what areas you will be assessed on during the Theory and Practical Assessments. If there are criteria within the Self-Assessment where you are not confident, it is in your interest not to enrol into the program until you have increased your expertise in those areas; otherwise you may find you do not pass the assessment.

Once the Self-Assessment has been successfully completed, you will be asked to formally enrol in the beforeUdig Certification process and make payment. During the enrolment process you will need to:

  • Input the serial number of the Locator you will use during the practical assessment
  • Upload your photo
  • Upload a copy of your driver’s licence

After successful enrolment, you will receive your log-in details via email and can proceed to the Theory Assessment.

Please note - all fields are required


Do you have and use everything on the Required Items list?*
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Do you have at least three months full time equivalent practical locating experience, which includes time working in congested areas?*
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Can you operate and care for all essential locating equipment?*
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Do you understand AS 5488 – Classification of Subsurface Utility Information and how the quality levels may be applied in a New Zealand context?*
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Are you able to manage the scope of locating projects with each client?*
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Do you know how to request underground service plans through beforeUdig and additional plans from non-member asset owners?*
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Are you able to read and understand utility plans provided by infrastructure asset owners?*
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Do you understand the difference between live, abandoned and dead cables?*
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Can you identify work hazards related to a locating task and act to control those hazards to prevent harm to yourself, co-workers, and the community?*
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Can you interpret and apply a risk matrix?*
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Do you approach all locating tasks logically and methodically?*
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Can you identify all relevant visual surface features that would suggest the presence of underground assets in your work area?*
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Can you determine the type of underground assets where directly visible e.g. in pits?*
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Do you understand electromagnetic fields, how they are generated, and how they apply to locating?*
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Can you select and apply different locating techniques to successfully identify conductive and non-conductive assets?*
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Do you understand the impact of choosing signal frequencies in different locating situations?*
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Do you know how to decrease the resistance in a locating circuit if you want to improve signal strength?*
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Do you understand the causes of interference on locating circuits?*
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Can you prevent and/or minimise the impact of interference while locating?*
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Can you recognise when EM interference is adversely affecting a locate?*
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Do you take a logical approach when your EM signal suddenly reduces or is lost during a locate?*
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Can you use the direct connect method to successfully locate a service when it’s appropriate?*
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Do you know how to use the inductive locating method when it makes sense?*
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Can you successfully use the ‘inductive spillage’ method when the situation calls for it?*
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Do you know how and when to check for air coupling and how to overcome this problem?*
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Do you understand peak and null modes and what they are telling you?*
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Can you use locating equipment to obtain a depth reading?*
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Do you know how to complete a passive blind search when it’s required?*
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Can you undertake an active blind search when the situation calls for it?*
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Do you understand how to use a sonde?*
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When carrying out an EM locate, do you know how to ‘troubleshoot’ when faced with unexpected readings?*
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Do you understand the process of triangulation?*
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Do you use utility naming and marking colours that are consistent with current New Zealand convention?*
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Have you fully read and agree to the terms and conditions*
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beforeUdig is a free online service that enables anyone undertaking excavation work to obtain information on the location of underground assets in and around a proposed dig site — helping to prevent damage, ensure safety, and protect critical infrastructure.

The service provides a one-stop communication platform for contractors, utilities, and asset owners across participating regions.

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