Resources

This rule sets out requirements to ensure that heavy vehicles and heavy-vehicle combinations (over 3500 kg GVM) can brake safely, with balanced brake performance, at any road-legal load condition.

Rule versions

• The ‘Current rule’ provides the most up-to-date version of the rule and any amendments made to it. We recommend using this as your reference point if you want to read the most current information.
• The ‘Original rule’ shows the very first version of the rule, as it was when first introduced.
• ‘Amendments’ provides links to all changes made to the rule over time. These are useful if you want to research the history of the rule.

Note: Each link also includes access to consultation materials, such as summaries of submissions and frequently asked questions (FAQs) related to each version and amendment.

Questions and answers

Questions and answers are provided to accompany a new rule or amendment when they are signed. These and other consultation documents on this page have not been updated to take into account any later rule amendments and are retained for historic interest only.