Confined Space and Gas Detection Refresher

This training programme refreshes learners’ knowledge and skills needed to navigate confined spaces safely, in compliance with New Zealand’s regulatory standards.

Duration
1/2 day
Topic
Refresher Training
Next session
19 Oct 2026 · 21 dates
Confined-Space-and-Gas-Detection.webp

At a glance

Course details

Duration:1/2 day
Unit Standards being refreshed:

Unit #   Name Level 
Credits  
17599 Plan a confined space entry  4 5
18426 Demonstrate knowledge of hazards associated with confined space  3 4
25510 Operate an atmospheric testing device to determine a suitable atmosphere exists to work safely  3 4

Overview

Confined Space and Gas Detection Refresher course overview

Confined spaces are too important to let risk fatigue and bad habits slip in. When critical checks, controls, and monitoring become routine, it’s easy for standards to drop without anyone noticing. This Confined Space and Gas Detection Refresher course is designed to help learners maintain their capability to work safely in these high-risk environments.
 
We move away from refreshers that rely on simply revisiting theory. Our industry-experienced trainers guide learners back through the key elements of confined space work, including entry processes, gas detection, permit requirements, and monitoring expectations. Participants revisit how to identify hazards, apply control measures, use gas detection equipment, and interpret atmospheric conditions to ensure work is carried out safely.

IMPAC’s focus is on supporting learners to maintain a consistent, high-quality approach to confined space work. Participants leave with a refreshed understanding of their responsibilities, the confidence to apply safe systems of work, and the knowledge required to carry out confined space tasks safely and consistently.

Curriculum

What you'll cover

This course is designed for:

  • Workers involved in confined space entry, including entrants and standby persons.
  • Supervisors, permit receivers, and permit issuers responsible for planning or authorising confined space work.
  • Team leaders and managers who oversee confined space work and need a clear understanding of entry controls, gas monitoring, and permit requirements.
  • Organisations that want workers to revisit safe entry processes before standards drift or shortcuts become normalised.

Our approach

+IMPAC's Confined Space and Gas Detection Refresher training approach

This Confined Space and Gas Detection Refresher course is built around the decisions people need to get right before and during entry. Learners revisit permit steps, hazard controls, and atmospheric testing requirements through guided discussion, worked examples, and practical scenarios that reflect real confined space tasks.
 
The facilitation focuses on recognising where things typically go wrong: missed checks, poor interpretation of gas readings, assumptions about ventilation, or gaps between the permit and what is happening on site. Trainers help learners work back through these points so they can test their judgement, refresh safe routines, and spot issues earlier.
 
Participants also revisit the use of gas detection equipment and the interpretation of oxygen, flammable, and toxic gas readings. The aim is not just to remember the theory, but to leave ready to apply it consistently in day-to-day confined space work.

Format

Course format and duration

This course is delivered over half a day.

Training is available in person nationwide for in-house delivery, with public courses offered face-to-face in Auckland, Christchurch, and Hamilton, or as a pre-recorded webinar.

Upcoming sessions

Public courses – Book now

eLearning

Complete online at your own pace.

$200.00 excl. GST

Want to discuss running Confined Space and Gas Detection Refresher at your organisation?

Enquire now

FAQ

Frequently asked questions

This refresher is for workers who already take part in confined space entry or supervise that work. That includes entrants, standby persons, supervisors, permit receivers, permit issuers, and managers who need to maintain confidence in confined space controls, gas detection, and monitoring requirements.

Many clients, sites, and industry standards expect Confined Space and Gas Detection Refresher training to be completed regularly to help workers maintain competency in high-risk environments. While legislation does not prescribe a fixed refresher interval, PCBUs are expected to ensure workers remain capable of carrying out confined space work safely. Refresher training is commonly used to review gas detection, hazardous atmospheres, permit systems, and critical confined space controls.

Yes, learners should already hold one or more of the relevant unit standards before attending this refresher. Learners will only be refreshed against the unit standards they currently hold.

The course runs for half a day. The refresher is designed to reinforce existing knowledge and practical decision-making without repeating the full initial programme, while still covering permits, hazards, gas detection, and atmospheric testing expectations.

Yes. This refresher can be completed either online as a pre-recorded webinar or face-to-face.

Yes, this refresher course includes an assessment to confirm learners can still apply confined space entry and gas detection requirements safely.

No, this refresher does not award new NZQA unit standards. It helps learners maintain their capability and revisit existing knowledge and practical skills.

Yes, gas detection and atmospheric testing are a core part of the refresher. Learners revisit how to use testing equipment, interpret oxygen, flammable, and toxic gas readings, and respond appropriately before and during confined space entry.

IMPAC recommends that learners complete refresher training at least every two years to maintain their knowledge and competency. Some clients or industry requirements may require more frequent refreshers.

Learners who complete the refresher training and assessment will receive an updated IMPAC Certificate of Competency covering the confined space and gas detection unit standards they currently hold.

Yes, this course is available for both public and in-house delivery.

Please bring the following to training:

  • Closed footwear
  • A driver’s licence or another form of photo identification

For public face-to-face courses, morning tea and lunch are provided. If you have dietary requirements such as allergies, vegan, or gluten-free needs, please contact IMPAC at training@impac.co.nz at least two working days before training. Please note that dietary preferences cannot be accommodated.

If you are completing an online or eLearning course with IMPAC for the first time, you will receive your LMS login details within 24 hours of receiving your course instructions email.

You can access IMPAC’s LMS by clicking here.

You can reset your username and password by clicking here and entering your email address.

Pricing depends on the delivery method.

In-house: $2200 + GST for up to 12 persons OR $2500 + GST for up to 14 persons.

Public (face-to-face): $220 + GST per person.

eLearning: $200 + GST per person.

Continue learning

Further study options

If you’re continuing your learning journey in health and safety, the unit standards you already hold can contribute towards IMPAC’s Certificate in Applied Workplace Health and Safety Practices (Level 3), which leads to the New Zealand Certificate in Workplace Health and Safety Practice (Level 3).

This refresher course supports you to revisit and apply that knowledge in practice, helping you maintain capability while continuing to work towards a recognised qualification over time. Browse all Confined Space / Gas Detection training courses.

This programme is approved by the New Zealand Qualifications Authority under section 439 of the Education and Training Act 2020, and Impac Services Limited is accredited to provide it under section 441 of the Education and Training Act.

What's next

Next steps

To get started, you can book now.

To explore more courses in this area, see the Confined Space / Gas Detection category.
 
If you are reviewing wider capability across high-risk work, this refresher also sits well alongside Verification of Competency, Safety Observer, or the full Confined Space and Gas Detection.

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