Document Ref: RW-SOP-2026-HVNL [1]
Heavy Vehicle National Law (HVNL) Section 26C Due Diligence Protocol [1]

Driver & Loader Operational Field Guide

Standard Operating Procedure (SOP) • Approved Pre-Departure Mass Equilibrium & Roadside Audit Protocol [1, 2]

Legislative Mandate & CoR Purpose

Under Section 26C of the Heavy Vehicle National Law, every party in the transport chain—including employers, prime contractors, loading managers, and drivers—has an active statutory duty to ensure safety by eliminating mass breach risks before travel [1]. This Standard Operating Procedure defines the mandatory 4-phase mass verification workflow required prior to every dispatch.

01
Phase 01 • Vehicle Onboarding

Compliance Plate OCR Scanning

Est. Time: 15 Seconds
Standard Operating Action:
  • Launch the Right Weigh mobile application in the cab or dock office.
  • Select "Onboard Asset" and point the camera directly at the prime mover or rigid truck modification plate (e.g. QLD Mod Plate or NSW/VIC RMS compliance plate).
  • Verify that the extracted Tare, GVM, GCM, and Axle Ratings match the physical stamped plate.
Statutory Purpose:

Eliminates manual driver transcription errors. Synchronizes the vehicle’s physical GML envelope directly with Australian NEVDIS specifications, establishing baseline tare mass.

02
Phase 02 • Loading Dock Coordination

30cm Caliper Clearance Offsets

Loading Dock Floor
Standard Operating Action:
  • Enter total pallet count (Standard Australian CHEP: 1,165 mm × 1,165 mm) and unit freight mass.
  • CRITICAL RULE: Never flush dense freight directly against the front headboard without checking the tandem drive gauge.
  • Use the tactile 30cm Nudge Calipers to shift cargo rearward until the drive axle indicators return to the LEGAL (Green) state.
  • Forklift operators must leave the exact front clearance gap (e.g. 1.20 m) indicated by the visual deck.
Physics & Fine Prevention:

Flushing pallets 0m against the headboard causes front kingpin overload, driving tandem axles into a Substantial Risk breach (5%–20%), carrying statutory penalties up to $3,650 [1]. A 30cm–120cm front offset restores static equilibrium.

03
Phase 03 • Pre-Departure Validation

Driver Attestation & SHA-256 Seal

Evidence Act 1995 [2]
Standard Operating Action:
  • The driver conducts a physical walk-around: load restraint checked, curtains tensioned, container locks engaged.
  • Driver enters their name and authorization number, then taps "Seal & Sign Manifest".
  • The platform generates an immutable 64-character SHA-256 cryptographic docket and records it to the cloud ledger [1, 2].
Legal Evidentiary Defense:

Under Part 2.3 of the Evidence Act 1995, a pre-departure cryptographic seal provides non-repudiation proof that all reasonably practicable measures were taken before the vehicle entered public roads [1, 2].

04
Phase 04 • Roadside Intercept

Weighbridge & Inspection Audit Protocol

Roadside Interaction
Standard Operating Action:
  • When intercepted by NHVR Safety and Compliance Officers or State Police, open the sealed docket.
  • Present the Tamper-Evident QR Code on the device screen.
  • Advise the officer: "This load was pre-calculated and cryptographically sealed under HVNL s26C prior to departure. The ledger record is publicly verifiable at rightweigh.app/verify."
Roadside Result:

Officers scan the QR code with their standard mobile device. The public ledger immediately verifies the pre-departure timestamp, freight mass, and mathematical torque blueprint, establishing full Chain of Responsibility compliance [1, 2].

Quick Reference

In-Cab Pre-Trip Attestation Checklist

Prime mover GVM and trailer GCM ratings verified against NEVDIS register.
CHEP pallet count entered and deck bay clearance offsets confirmed with loader.
Steer axle (6.5t), tandem drive (16.5t), and tri-axle (20.0t) verified in legal green zone [1].
Digital manifest signed and SHA-256 seal confirmed before releasing park brakes [1, 2].
Advisory Decision-Support Notice: All calculations, axle torque distributions, and legal clearance estimates are mathematical simulations. They do not replace trade-certified physical weighbridge scales. Operators and drivers remain exclusively liable for vehicle loading, road safety, and statutory mass compliance under HVNL Section 26C [1]. Right Weigh assumes no liability for fines, load shifting, or roadside enforcement actions. Read Full Statutory Disclaimer