Workplace Safety and Health Management in Construction Industry

Construction remains one of the most hazardous industries in which to work. Work at height, heavy lifting, excavation, moving plant and temporary structures all bring the risk of serious injury, and the consequences of a lapse are rarely minor. Workplace safety and health management in construction industry practice is the system of law, roles, planning and site discipline that keeps those risks under control, and in Singapore it rests on a clear statutory framework that places duties on everyone from developer to worker.

This article outlines that framework as it stands today: the Workplace Safety and Health Act, the main construction-related regulations, who carries which duty, how risk is managed day to day, and the changes introduced in recent years. It is a guide to the structure of the system, not a substitute for the regulations themselves or for advice from a qualified WSH professional.

The legal framework in Singapore

The cornerstone is the Workplace Safety and Health Act 2006, administered by the Ministry of Manpower (MOM). It replaced the older Factories Act approach, which focused on prescriptive rules for specific premises, with a performance-based framework built on three principles: reducing risk at source, placing responsibility on those who create and are best placed to manage risk, and higher penalties for poor safety management.

Under the Act sits a body of subsidiary legislation. Those most relevant to construction include:

WSH (Construction) Regulations — duties specific to construction worksites, including requirements on safety management, supervision, scaffolds, excavations, formwork and other construction activities.
WSH (Risk Management) Regulations — the general requirement to identify hazards, assess risks and implement control measures before work begins.
WSH (Work at Heights) Regulations — duties around fall prevention, permits for high-risk work at height and the competence of those involved.
WSH (Design for Safety) Regulations 2015 — in force since 1 August 2016, requiring developers of projects with construction work of a contract sum of $10 million or more to have designers and contractors identify and address foreseeable risks during design, recorded in a DfS register.

The WSH Council, working with MOM, supports the framework through codes of practice, guidelines and programmes such as bizSAFE, which helps companies build up their risk management capability in stages.

Who is responsible: duty holders

A central idea in Singapore’s approach is that safety is not only the contractor’s responsibility. Duties are spread across the parties who influence risk.

Developers and designers

Decisions made at design stage determine many of the risks faced later, during construction and maintenance. Under Design for Safety, developers on qualifying projects must appoint competent designers and contractors and ensure DfS reviews take place. Designers are expected to eliminate or reduce risks they can foresee, for example by designing for prefabrication to reduce work at height, or by providing safe access for future facade maintenance.

Occupiers and main contractors

On a construction site, the main contractor is typically the occupier with overall control of the worksite. It is responsible for the site’s safety management system, coordination between subcontractors, and ensuring that work is planned and supervised safely. The relationship between main contractor and subcontractors, described in our article on main contractor vs subcontractor, matters here because the main contractor cannot simply pass its safety duties down the chain.

Employers and subcontractors

Every employer must take reasonably practicable measures to ensure the safety and health of its employees and others affected by its work. Subcontractors are employers in their own right and carry these duties for their own workers and activities.

Workers

Workers must follow safe work procedures, use the protective equipment provided and not endanger themselves or others. Before working on site, construction workers in Singapore must complete mandatory safety training; our guide to the CSOC explains the Construction Safety Orientation Course that serves as the entry point.

Workplace safety and health management in construction industry practice

Law sets the duties; management systems turn them into daily practice. On a well-run site the key elements fit together as a cycle of planning, doing, checking and improving.

Risk assessment

Before any work activity begins, hazards must be identified, the associated risks evaluated and control measures put in place, following the hierarchy of controls: elimination first, then substitution, engineering controls, administrative controls and finally personal protective equipment. Risk assessments must be reviewed when work methods change, after an incident, or periodically. They are only useful if workers know their contents, so communicating them at toolbox briefings is part of the process.

Safety management system

Larger worksites are required to implement a formal safety management system, covering policy, organisation, training, inspection, incident investigation, emergency preparedness and review. This system is typically audited, and its quality affects how a contractor is assessed.

Permit-to-work

High-risk activities, such as work at height above certain levels, hot work, confined space entry and lifting operations, are controlled by permit-to-work systems. A permit forces the planning, checks and authorisation to happen before the work starts rather than after something goes wrong.

Competent people

Depending on the size and nature of the project, sites must appoint competent persons such as WSH officers or WSH coordinators, supervisors for specific activities, and lifting supervisors. The size thresholds and competence requirements are set out in the regulations and should be checked against the current text for each project.

Temporary works and the engineer’s role

Many of the most serious construction accidents involve temporary works: formwork, falsework, scaffolding, excavation support and propping. These are structures in their own right, and their design, checking and inspection require engineering input. Professional engineers are required to design certain temporary structures, and the contractor must ensure they are erected and inspected in accordance with the design.

For a structural engineer, safety is therefore not a separate topic from design. A permanent structure that cannot be built safely, or that relies on temporary works nobody has designed, is an incomplete design. Our broader guide to construction safety covers the hazards and controls that recur across building sites.

Recent changes

The framework has tightened in recent years. From April 2024, WSH requirements for public sector construction projects were raised, including the extension of demerit points to subcontractors and a requirement to adopt established WSH technologies on larger public tenders. From 1 June 2024, maximum fines across 21 pieces of WSH subsidiary legislation were increased, with the highest tier, for offences that are a major cause of serious harm, rising to $50,000 for a first conviction. From the same date, construction sites with a contract sum of $5 million and above must install video surveillance systems at locations where high-risk work is carried out.

MOM has also trialled video analytics on construction sites and has indicated it intends to work with BCA and public agencies to extend such requirements. Effective workplace safety and health management in construction industry settings therefore has to keep pace with the rules. Because the framework continues to evolve, contractors and developers should check current MOM and WSH Council guidance at the start of each project rather than relying on past practice.

Frequently asked questions

Which law governs construction safety in Singapore?

The Workplace Safety and Health Act 2006 is the principal law, supported by subsidiary legislation including the WSH (Construction) Regulations, WSH (Risk Management) Regulations, WSH (Work at Heights) Regulations and WSH (Design for Safety) Regulations, all administered by the Ministry of Manpower.

Who is responsible for safety on a construction site?

Responsibility is shared. The main contractor, as occupier, controls the site’s safety management, but developers, designers, employers, subcontractors and workers each carry their own statutory duties in relation to the risks they create or control.

What is Design for Safety?

Design for Safety requires developers of qualifying projects, those with construction work of a contract sum of $10 million or more, to ensure designers and contractors identify and reduce foreseeable safety risks during design, and record them in a DfS register passed on to the building owner.

What changed in WSH requirements in 2024?

From June 2024, maximum fines under WSH subsidiary legislation were raised, up to $50,000 for the most serious tier, and video surveillance became mandatory at high-risk work locations on construction sites of $5 million and above. Earlier in 2024, public sector projects saw tighter requirements, including demerit points for subcontractors.

Is risk assessment mandatory?

Yes. Under the WSH (Risk Management) Regulations, risks must be assessed and controlled before work starts, reviewed regularly, and communicated to the people doing the work.

Need engineering input on temporary works or design for safety? Talk to our consultancy or get in touch.