Engineering Standards

Our Engineering Standards - Assuring the Integrity of the Country Regional Network (CRN)

John Holland Country Regional Network (CRN) engineering standards provide an assurance framework for managing safety, assets and the environment on the CRN.

Our standards assure the integrity of the CRN and verify that only competent people undertake engineering design, maintenance and project activities. Our standards documents specify John Holland’s rail engineering requirements generally and in each discipline area. The engineering standards guide activities to be undertaken on the CRN’s assets. Compliance is mandatory for anyone undertaking engineering work in the CRN or for supplying engineering works to be incorporated into our rail network or operating systems.

If you are new to John Holland CRN Engineering Standards please read CRN GM 001 Engineering Standards System Manual before using any other engineering standards that are listed and available on this site.

Engineering Standards by Discipline


Train Operating Conditions (TOC) Manual

Civil (including track, structures, geotechnical and right of way)

Signal (including communications and train control systems)

Rolling Stock


Engineering Authority

A John Holland Principal Engineer manages engineering standards and related processes for each area. Principal Engineers are responsible for assigning Engineering Authority relating to assets and for the development, maintenance and approval of standards documentation (including standards, manuals specifications, procedures and technical maintenance plans). The process helps ensure that our engineering infrastructure is designed, constructed, operated and maintained to achieve safety, reliability and performance targets. Anyone undertaking engineering activities for - or on behalf of John Holland - must comply with these engineering standards.

Contact Us

Enquiries about our engineering standards, including interpretation, may be made to a Principal Engineer by contacting us.


Copyright: The information in these engineering standards documents is protected by Copyright and no part of these documents may be reproduced, altered, stored or transmitted by any person without the prior consent of John Holland.