Design for Safety (Dfs): One Day Workshop for WSH Professionals


The WSH Professionals play a vital role in the construction safety as they are constantly engaging with the Manager, Supervisor, the specialist designer and worker and are able to foresee the possible downstream safety & health illness, incident, accidents and near misses. Such knowledge and experience, if shared upfront with the Designers, will enhance the DfS review process. The intent of the DfS is always to eliminate the "risk" at the source; if that is not reasonably practicable, collective control measures such as the substitution-engineering-administrative-PPE needed to put in place. Risk at source is created by the Developer, Designer and Contractor. With the understanding of the DfS GUIDE process (i.e. GUIDE 1: Concept Design Review; GUIDE 2: Detailed Design Review and GUIDE 3: Pre-construction Design Review) and the various roles and responsibilities of stakeholders, the WSH Professional will be in a better position to advise the Contractor to put forward a safe and acceptable construction method of construction, that is customised to the intent of the Designer's design.

This one-day workshop will equip WSH Professional with a basic understanding and knowledge of the preparation of the GUIDE checklists details for the DfS review before the construction commences


Upon completion of this workshop, participants will have the skill and knowledge to work with stakeholders such as Developers, DfS Professionals, Designers and Contractors to identify foreseeable downstream risks upfront.

Who should attend

WSH Professionals, developers, main contractors, sub-contractors, professional engineers, resident technical officers, safety consultants, construction industry professionals.

Course Content

1.Understand the roles of all stakeholders under the WSH (DfS) regulations
2.Understand the GUIDE Process
(GUIDE 1, 2 and 3 checklists)
3. Understand the use and application of “Code of Practice of WSH Risk Management, 2015"
4.Understand the differences between Contractors' “Risk Assessment Form” and Designers' “Safety & Health Risk Assessment Form”
5.Understand the use of the “Safety & Health Risk Assessment Form” to propose reasonably practicable controlled measures
6. Understand DfS register and the Safety & Health information required upon projection completion
7.Case Studies

Trainer Profile

Mr Oh Boon Chye, Jason, obtained his B.Eng (Civil) (Hons) from the University of Glasgow, United Kingdom and furthered his study at the National University of Singapore for his Master of Science (Safety, Health and Environmental Technology).

Jason ventured into construction industry starting from the ground as a Project Engineer, Safety Officer/ Manager, Designer, Project Manager/ Director. The projects ranged from heavy industry warehouse/ factory, School, Private and Public Residential housing projects in Singapore to Malaysia, Vietnam, China and United Arab Emirates. Jason has more than 20 years of experience in Project Engineering Construction, Design and Management. Jason is the Principal Consultant of JOH Safety Consultancy Pte Ltd. He was the Chief Operating Officer of BCEG International (Singapore) Pte Ltd/ BCEG International (Malaysia) Sdn Bhd. He was the Chief Operating Officer of Abu Dhabi precast, Executive Director of Linair Bio-energy Pte Ltd, General Manager of Metal Technology LLC, United Arab Emirates and a few reputable Developers & A1 Contractors in Singapore. Jason was the Chairman of Health & Safety Engineering Technical Committee of IES (2011 to 2015). Also, he serves as the Executive Committee of IOSH (Singapore Branch) and is the Co-Convenor for the SS 559:2010 Safe use of Tower cranes. Since 2010, he is a registered DfS Professional Trainer with WSH Council, IES and ACES.


SISO Academy
167 Jalan Bukit Merah,
#02-16 Connection One, Tower 4
Singapore 150167

Addition Information

7 SDUs

6 PDUs

*Fee includes GST and e-training material

Course code
Course Category
CPD Point
Course Date
15 July 2021 09:00 AM to 15 July 2021 05:00 PM
Non SISO Member Nett Course Fee
SISO member Nett course fee
Course Date
16 November 2021 09:00 AM to 16 November 2021 05:00 PM
Non SISO Member Nett Course Fee
SISO member Nett course fee