The Registered Industrial Hygienist (RIH) Scheme
Recognising professional excellence in industrial hygiene practice.
The Registered Industrial Hygienist (RIH) Scheme in Singapore is a professional certification programme that upholds high standards in industrial hygiene and supports stronger workplace health practice across industries.
About the Scheme
Administered by the RIH Board under the auspices of the Occupational and Environmental Health Society, the RIH(SG) scheme was established to recognise qualified professionals who demonstrate competence in industrial hygiene.
The scheme supports the development of capable practitioners who can identify, evaluate, and control workplace health hazards while contributing to higher occupational health standards in Singapore.
International Recognition
In 2020, the RIH(SG) certification was recognised by the International Occupational Hygiene Association under the National Accreditation Recognition framework.
This recognition strengthens the standing of the scheme and reflects its alignment with recognised professional certification standards in the wider occupational hygiene community.
Professional Standards
The scheme promotes high standards of competence, ethics, and professional practice in industrial hygiene.
Practical Competence
Candidates are assessed on both knowledge and the ability to apply industrial hygiene principles in real workplace settings.
Workplace Impact
Certified professionals help organisations manage workplace health hazards, strengthen controls, and protect workers’ health and well-being.
The Certification Pathway
Relevant Education and Experience
Candidates are expected to have appropriate educational qualifications in relevant fields together with practical experience in industrial hygiene, monitoring, risk assessment, and control implementation.
Rigorous Evaluation of Competence
The certification process includes examination and/or assessment of technical understanding across key industrial hygiene subjects and the ability to apply them in practice.
RIH(SG) and RAIH(SG) Designations
Successful candidates may be recognised as Registered Industrial Hygienists or Registered Associate Industrial Hygienists and use the RIH(SG) or RAIH(SG) designation respectively.
Continued Professional Growth
The scheme supports ongoing professional development so that certified practitioners remain current with evolving knowledge, best practices, and emerging issues in industrial hygiene.
Explore the RIH(SG) scheme further
Learn more about the certification framework, accreditation pathway, and the directory of recognised professionals through the official RIH(SG) website.