Safe2Site Supervisor Training

Safe2Site Supervision Training (S2SST) is a CITB endorsed equivalent to the SSSTS qualification. The only fully online, fully flexible Supervisors course.

Book now!

and receive a £30 discount off our standard course price

£225 +VAT

SSSTS Course Overview

At COSAC, we offer the SSSTS course as an exclusive online option, making it the only CITB approved 100% flexible site supervisor course. Rather than being delivered remotely, where occasional attendance is still required, with COSAC, you can access the SSSTS course online at your own convenience.

Avoid taking time off work

Our course delivery options mean you need not worry about taking time off work!

Flexible, adaptable delivery

Available anytime and anywhere to complete at your own pace!

100% online delivery

With COSAC, you can complete your course solely online, eliminating the need for travel!

Complete your course quickly

You can obtain certification in 6-8 hours – half the time of a classroom or live remote delivery!

Learning Outcomes

Our Site Supervisor Safety Training Scheme is aimed at people who work within the construction industry either in a supervisory role or looking to step up to a supervisory role. 

This course ensures you receive a thorough, highly relevant understanding of the legal framework and associated requirements for a supervisory role within construction. 

By the end of this course, you will have a full understanding of the following areas:

Health and safety law and how it applies to supervisors.

Your supervisory responsibilities in controlling the site safely.

Risk assessments and the need for method statements.

Effective site inductions, toolbox talks and method statement briefings.

Monitoring site activities effectively.

Timely intervention when bad practice is identified.

The certification for this course is valid for 5 years. To remain certified in this area, you will need to take a refresher course before the expiry date on your certificate. Otherwise the full course will need to be retaken.

Why do you need SSSTS certification?

A supervisory role within construction requires the ability to collaborate with other people and teams on-site, including contractors, employees and employers. Identifying hazards and risk is key to ensuring minimisation of accidents or injuries on site. 


The SSSTS course ensures you have the knowledge and skills to effectively supervise whilst promoting the health, safety and welfare of everyone on site under your supervision.The certification also ensures you comply with all relevant legislation surrounding on-site operations and projects.

What do you need to start?

In order to start the SSSTS certification, you need to ensure you have the following items:

A laptop with a reliable internet connection, a working microphone and a webcam.

CITB Construction Site Supervision publication (GE706 2020).

A pack of highlighters (required for course textbook use).

A pack of three colour Post-It notes (required for course textbook use).

Why choose COSAC?

With COSAC, you’ll receive a flexible and agile SSSTS course delivery with our 100% CITB-approved flexible online training. Through this delivery, you won’t need to take any time off work in order to get qualified by attending classroom training. We guarantee the following when opting to choose COSAC for your SSSTS course.

  • 100% online delivered training.
  • 100% flexibility.
  • 100% CITB-approved.
  • Complete your course in 6-8 hours.
  • Get qualified without time off work.
  • No classroom training.
  • UK-based customer service.
  • A highly trusted training provider.
  • 24/7 testing.
  • No booking required – available now!

For Employers

If you are an employer seeking the online SSSTS course for your team, we provide the option to buy in bulk. All you need to do is enter the quantity of the number required at the checkout stage. Once submitted, you’ll be able to access the courses right away. 

We offer great deals and discounts for both block and ongoing bookings. To get more details about this, please contact us, and a member of our friendly, professional team will assist you with any queries.

What our clients say on Trustpilot

Simon Lewis
Read More
Great platform and easy to use. Flew through the training.
Gilles Fabri
Read More
Very helpful responsive and concise, top notch.
Read More
Very easy and well presented plenty of time to complete the course would recommend to anyone looking to do any courses on line.
Mihail Bogdan
Read More
Is very easy to use this course and a beautiful experience
Mihály Szarka
Read More
It was my first online course and exams so I didn't know what to expect.I found it very easy to use and straight forward all modules and exams. Customer service very quick and helpful special thanks to Dan as well.I would definitely recommend.


What is the S2SST course?

Safe2Site Supervision Training (S2SST), approved by CITB, is a fundamental training course that aims to improve the quality and safety of work across all construction sites. Throughout the course, you will be exposed to important scenarios underlying health, safety, and environmental issues so that you become aware of them, and know-how to resolve them. S2SST also covers the legal requirements that a company must follow while operating on a construction site.   


By the end of the S2SST course, you will have a good understanding in: 

  • Apply technical skills to create a safe working environment  
  • Ensuring that your organisation is exercising health and safety principles 
  • Undertaking risk assessments and creating a method statement  
  • Conducting briefs to the team and the company
  • Inducting new starters on to the site 
  • Overseeing all the operations on the site
  • Identifying issues with work that is being carried out 
  • Addressing problems associated with health, safety, and environment

Who is S2SST for?

The S2SST course is an industry-leading training course for all on-site supervisors and managers. It is the first step of understanding all the health and safety principles associated with working in a supervisory role on a construction site,

What is involved in an S2SST course?

You first need to have a copy of the CITB Site Safety Plus, Construction Site Supervision Book GE706 to complete this course.  You refer to the book throughout and complete the online learning, which will take you approximately 6 hours.  There is then a 30 minutes test and for the last 10 minutes you can refer to your book.

What does the S2SST cover?

There are five sections:

  • Legal and Management
  • Health and Welfare
  • General Safety
  • High Activities
  • Environment

What qualification do I get?

Safe2Site Supervision Training (S2SST).  The course is approved by CITB, it has been mapped to the same standards and is fully equivalent to SSSTS.

Why do the S2SST online?

  • The interactive online course takes approximately six hours, plus a 30 minute final test
  • No need to sit in classroom or on zoom call
  • The course and test can be completed in one go or over a period of days or weeks
  • Return to the course as many times as you like, it will remember and track your progress
  • Tests are available anytime 24/7
  • The first time pass rate is over 98%, with 100% overall
  •  Your certificate will be available to download within 24 hours of passing

What do you need to do the S2SST online course?

The course materials can be accessed on any device connected to the Internet, but for the final assessment, you must have access to a chrome book, desktop or laptop with the following: 

  • A reliable internet connection, minimum continuous speed of 2mbps (You MUST use an up to date version of the Chrome browser to take your test).
  • A working microphone and webcam.
  • Your device must also meet the following criteria:



  • Windows 7 or higher Operating System
  • Intel Pentium 4 processor or later
  • 4GB of RAM



  • OS X El Capitan 10.11 or later.

I’m an employer looking to buy for my team, can I buy several Safe2Site Supervision Training (S2SST) courses?

  • Yes, absolutely, simply put in the quantity of the number you need in the checkout
  • We offer discounts for block and ongoing bookings, contact us for a quote

What’s included in the price?

  • Unrestricted access to the Safe2Site Supervision Training (S2SST) online course
  • The end of course online final test (using your own equipment) which will be recorded and validated
  • Your downloadable Safe2Site Supervision Training (S2SST) certificate

What does the final test involve?

  • Tests are available once you have completed all your modules
  • Tests are available anytime 24/7
  • Support is available Monday-Friday 9am-5pm
  • You are allowed 30 minutes to answer 30 multiple choice questions, including 10 minutes open book
  • You need to score 24 out of 30 to pass
  • You will need valid photographic ID (a passport or UK/EU driving licence)
  • You will receive your preliminary result and % score immediately
  • Certificate will be available to download within 24 hours
  • The cost of resitting a failed test is £25

What should I consider before I buy?

  • Can I get a refund if I realise this isn’t the right course for me? You can request a refund within 14 days of purchase, but only if you haven’t accessed S2SST
  • Remember you need a copy of the CITB Site Safety Plus, Construction Site Supervision Book GE706 to complete S2SST
  • Do I have access to the equipment that I need? To complete S2SST, you need access to a tablet, chrome book, desktop or laptop to take the final test.  The learning materials can be accessed on any device.
  • Can I take S2SST in other languages? S2SST is only available in English and cannot be translated into any other languages
  • Can I get support for additional needs, such as dyslexia? Get in touch and we’ll tell you more about the support available

What mark do I need to get to pass the test?

The pass mark is 80% and all questions are equally weighted.  This means you need to score a minimum of 24 out of 30 to pass.

How long is S2SST valid for?

S2SST has to renewed every 5 years

What job prospects are available to me from completing the S2SST course?

This S2SST courseideal for construction Site Supervisors, Team Leaders and First-line Managers in the construction industry who would like to enhance their skills and progress in their roles.  This course is designed to teach the importance and benefits of risk assessment procedures and how to effectively communicate health and safety regulations to the team.

Our Accreditations