Permit to Work

The Common Permit to Work (CPTW) system is used at Todd Energy sites to provide a work management structure which assists to protect people, assets and the environment through Control, Communication, Co-operation and Co-ordination, when work is carried out. It is a formally documented process used to manage work that is identified as significantly hazardous, by making sure all safety measures are in place before work starts.

Todd Energy is a contributor to the Taranaki Common Permit to Work Committee whose vision is:

“To support the goal of Taranaki industry to have zero harm to people, the environment, property and reputation through consistent and accurate application of a robust permit to work system.”



Todd Energy has designed an application called PermitMe to streamline the entire process of creating, reviewing, submitting, and authorising permits within Todd Energy-operated facilities in alignment with the Common Permit to Work (PTW) process.

PermitMe enhances transparency and facilitates feedback loops in the Permit to Work process, resulting in significant efficiency improvements.

If you are a contractor to Todd Energy and require access to generate permits for tasks associated with Todd Energy facilities, kindly reach out to us at, and we will provide you with a direct link to access PermitMe.

Todd Energy Common Permit to Work Checklists

Common permit to work objective

  • To provide a robust and common work management system which assists to protect people, assets and the environment through proper control, communication, co-operation and co-ordination, when work is carried out in a specified area​
  • To assist user companies to fulfil their legal obligations under the Health and Safety at Work Act 2015, The Resource Management Act and associated regulations.

Common permit to work purpose

  • The CPTW system has been developed for the purpose of improving the quality of permit to work safety management and as such there are no restrictions on its use 
  • To be a common system across industry (requested by Taranaki industries in 1998)​
  • To define minimum training requirements for Permit to Work users.



Introduced PermitMe for electronic creation, review and authorisation of permitting.


The STOS PTW system was selected and adopted for common use and launched across participating industries as the Common Permit to Work (CPTW) system.


A local Taranaki industry user group was formed to research existing PTW systems, specifically to see if an existing PTW system could be adopted or adapted for common permit to work use


A survey of some 400 contracting companies attending the first petrochemical industry organized Health, Safety and Environmental Conference (1998), clearly identified a need to have a single Permit To Work system that would operate across the petrochemical industry


STOS (Shell Todd Oil Services) introduced an adaptation of the Shell UK PTW system for STOS Taranaki ops.


As a result of the North Sea Piper-Alpha incident a post incident report, ‘The Cullen Report’ identified many improvements for safety. A key item was the permit to work system: 1, Poor management of work permits and lockout/tagout procedures in maintenance operations. 2, Inadequate management review of the permit to work system. 3,Poor Handover communication and Emergency escalation procedures.

    Common permit to work foundations

    1. 1


      A complete manual to ensure understanding of the system and how to use it
    2. 2


      To ensure anyone working under the CPTW system has sufficient knowledge, experience and skill to implement the requirements of this system
    3. 3


      Work planning is recognised as an important activity affecting the CPTW system. Work planning is deciding the timing, sequence, personnel, and equipment required to safely carry out activity in the workplace
    4. 4

      Work Definition

      To ensure that the nature, content, and location of the task are defined
    5. 5

      Hazard Management

      To ensure that hazards are identified and controls (eliminate, isolate or minimise) are correctly specified to prevent harm to personnel, assets, and the environment
    6. 6


      The provision of a focal point on a site/installation to ensure that tasks that might clash with each other are not authorised to be carried out at the same time
    7. 7


      Provides prior review of all documentation / planning and allows work to proceed when scheduled if the conditions and controls are met
    8. 8


      Confirmation/Approval that the workplace is safe, and that work may proceed
    9. 9


      Allows for up to 10 reissues of the permit for ongoing work tasks thereby creating efficiencies in work flow and work control
    10. 10


      An appointed person in charge of each worksite (PICWS), responsible for ensuring that the requirements specified on the Permit To Work are complied with
    11. 11


      Stipulates requirements so that personnel associated with a job understand and comply with the Permit. A worksite toolbox meeting is used to facilitate this understanding
    12. 12


      To ensure the worksite is left clean, clear, and safe when the work is completed or suspended, and permits safe and effective operations
    13. 13


      An audit system to assist in ensuring that the requirements of the Permit To Work system are met

      Supporting Documents & approved trainers list

      Be Safe Training Matrix


      Private training establishments