Inspection and certification

3-9 Documentation of heavy vehicle specialist certification

Minimum file content

The following table defines the minimum file content that should be present in any HVSC certification file. In addition to the listed minimum requirements, all files should contain sufficient information such that another HVSC can independently verify the certification decision.

Table 3-9-1. Minimum file content

Required items (*if applicable)

Certifier categories

HVEA, HVET, HVEC, HVEL

HMAD, HMTD, HMCD, HMLD, HMKD

HVS1, HVS2, HVS3, HVP1, HVP2

HVEK

Procedure documentation sheet (PDS)

LT400 (DC or SODC if applicable)*

Inspection notes and sketches*

Photographs showing:

  • the entire vehicle (where practicable)
  • the vehicle's identifier – VIN or chassis number and plate (if registered)
  • the vehicle/component condition
  • condition before repair* 
  • detailed views of the components
  • build/repair progress* 
  • final inspection after all work completed.

Calculations, i.e.*

  • defined load cases
  • free body diagrams
  • all conditions of loading / load scenarios checked
  • allowable stresses (pass/fail).

 

Hubometer history and residual life assessment (for certification items with mandatory fatigue consideration e.g. drawbar and drawbeam)

 

 

 

Proprietary component data*

Drawings*

Material specifications

 

Fabicator instructions:

  • welding procedures
  • bolting procedures

 

Welder qualifications* 

   

Evidence of design that was followed, .ie. one of:*

  • SoDC/DC and drawings
  • NZTA pre-approved solution (MRCoP)
  • A repair of a load anchor design from NZS 5444
  • Manufacturers fitting instructions for replacement of bolted components e.g. fifth wheel, kingpin, bolted tow eye and couplings.

 

Vehicle information, e.g. data sheets, bodybuilder guide, vehicle history from LANDATA if already registered, etc*

 NDT records*

   
Dynamic/physical testing records*

 

Procedure Documentation Sheet (PDS)

The Procedure Documentation Sheet (PDS) is used to record the certification process for a vehicle. It is part of the certification file and captures key information and the steps taken during the certification.

An HVSC vehicle inspector must complete a PDS for every vehicle they assess for certification.

The PDS must record all determinations, professional opinions, Statements of Design Compliance (SoDC), and Design Certificates (DC) that are within the vehicle inspector's appointment. The PDS must be kept and provided if requested, in line with the conditions of the vehicle inspector's Notice of appointment.

The vehicle inspector must check that the information in the PDS is correct, then sign and date it. This responsibility cannot be delegated to another person.

See Reference material 1: Sample PDS documents

Where the information cannot be conveniently contained within the PDS it must be contained in a certification file and specified in the PDS, or, where it is a standard design, in documents held by the vehicle inspector and specified in the PDS.

Table 3-9-2. PDS content minimum requirements
Required items (*if applicable)
Document to be issued by the VI

Required information

Professional Opinion

DC

SODC

HVE* LT400

HM*D LT400 (and HVE* working to a SoDC or DC)

The Vehicle Inspector’s name, ID number, and the business address where records are held

Details for the vehicle(s) for which the design is applicable

 

 

 

 

Vehicle details and the identity of the vehicle

 

Identification of the design documents applied, e.g. SoDC & drawings

 

 

 

Verification by the Vehicle Inspector that the design documents contain sufficient & complete instructions for the manufacture, and or, modification, and or, repair, and or, installation; relevant to the vehicle and certification

 

 

 

Measurements and other factors relevant to the certification *

Identification of the reasonably foreseeable operating and load conditions

Recommended

Identification of the rules and standards that the item is being certified to comply with

 

Identification of relevant assumptions and calculations

 

 

Identification of relevant drawings and manufacturing instructions

 

 

Reference to documents specifying the designs materials and its fabrication methods*

 

Identification of any other reference files*

 

A record of vehicle inspections and identification of critical matters assessed during inspection(s);

 

Identification of welder(s), their qualification and qualification expiry.

 

 

 

A record of any delegated tasks*

A record of final inspection after all relevant work is completed

 

 

The reason(s) for refusing to certify any vehicle*

Where a certification is declined the file shall contain a PDS and justification for the determination

 

 

 

Identify any exemption from requirement applied*

Inspector’s declaration (specified below for the appropriate appointment) signature, date of signing

Declarations

Engineers (HVE*)

I declare I “insert certifiers legal name” am a Heavy Vehicle Specialist Certifier – Engineer and I hold a current valid appointment as an inspecting organisation and vehicle inspector. I certify that the vehicle component design and certification specified in this Procedure Document Sheet complies in all respects with applicable requirements for the aspect at the time of certification. I also certify that I have carried out my inspection and certification activities in accordance with the conditions and requirements of my appointment. To the best of my knowledge the information contained in this document is true and correct.

Local Manufacturers (HM*D)

I declare I “insert certifiers legal name” am a Local Manufacturer - Vehicle Inspector and I hold a current valid appointment under a Local Manufacturer - Inspecting Organisation “insert IO name”. I certify that the vehicle component design and certification specified in this Procedure Document Sheet complies in all respects with applicable requirements for the aspect at the time of certification. I also certify that I have carried out my inspection and certification activities in accordance with the conditions and requirements of my appointment. To the best of my knowledge the information contained in this document is true and correct.

Page added 14 October 2026 (see amendment details)

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