What is IOSH, and what do the membership levels mean in 2025?
This guide explains the current IOSH membership levels, outlining what each grade means, the qualifications or experience required, and how to progress through the structure. Whether you are just starting your health and safety career or aiming for Chartered status, it provides clear criteria for achieving each membership level.
What does IOSH stand for?
IOSH stands for the Institution of Occupational Safety and Health, a globally recognised organisation founded in 1945. Headquartered in Leicestershire, it has grown to become the largest professional body for occupational health and safety, with more than 48,000 members in over 130 countries. IOSH supports the profession through training, qualifications, advocacy, research and policy advice, ensuring that workplace safety standards are raised worldwide. As a membership organisation, it also provides a clear progression framework that reflects the skills, experience and qualifications of its members.
IOSH membership levels in 2025
IOSH updated its membership structure in late 2023 to align more closely with its OSH Competency Framework. This update was designed to future proof the profession, making it easier for people to progress based on real-world experience as well as formal qualifications. The changes also simplified grade names and routes, with Graduate membership becoming Certified Member and the old Associate grade being replaced by Affiliate Member.
Student Member
The Student Member grade is aimed at those currently studying for an IOSH qualification or another IOSH accredited course, such as the NEBOSH National General Certificate or a recognised SHE apprenticeship. A one-off student fee applies, and membership at this level provides access to study resources, mentoring and networking, helping members prepare for the transition into professional roles. Once the qualification is complete, students can upgrade to the appropriate professional membership level.
Affiliate Member
Affiliate Member is now the universal entry point into IOSH. It is open to anyone with an interest in occupational safety and health, regardless of current qualifications or job role. While it is a starting point, Affiliate membership provides access to IOSH’s learning resources, events and Blueprint CPD tool, making it easier to prepare for progression. From here, members can move up through either a qualifications-based route or the new experiential route that recognises relevant industry experience.
Technical Member (TechIOSH)
Progression to Technical Member requires an IOSH accredited Level 3 qualification such as the NEBOSH General Certificate, along with at least one year of relevant professional experience. This level is for those actively working in operational health and safety roles. Technical Members are expected to maintain a minimum of 30 hours of continual professional development each year via the Blueprint system. Members at this level can use the post nominal TechIOSH, which signals competence and commitment to employers and peers.
Certified Member (CertIOSH)
Certified Member, which has replaced the former Graduate Member grade, is aimed at senior professionals who are preparing to achieve Chartered status. This level is open to those with a relevant degree-level qualification and at least two years of industry experience, or to experienced OSH leaders who qualify via the experiential route without holding formal academic credentials. Certified Members are expected to maintain their CPD and can use the post nominal CertIOSH. This level provides a strong platform for those aiming to progress to Chartered status.
Chartered Member (CMIOSH)
Chartered Member status represents one of the most prestigious professional accreditations in the safety industry. There are two main ways to achieve it. The first is the Professional Development Assessment (PDA) route from Certified Member, which was introduced in 2024 and has already produced its first successful applicants. The second is the experiential route for those with between five and ten years of leadership experience in OSH roles. All Chartered Members must complete IOSH’s Ethical Practice in OSH e-learning and assessment and maintain 30 CPD hours per year. The CMIOSH post nominal is widely recognised across industries and internationally.
Chartered Fellow (CFIOSH)
Chartered Fellow is the highest grade of IOSH membership. It is reserved for professionals who have been Chartered Members for at least five years, have held senior OSH leadership roles for a minimum of five years, and can demonstrate excellence in both practice and contribution to the profession. Achieving CFIOSH status involves an application, portfolio review and interview, as well as a commitment to ongoing CPD and ethical practice training. This grade reflects not only technical expertise but also significant influence and leadership within the field.
IOSH Training Courses
In addition to the memberships, IOSH also offers a variety of different courses that are aimed at people of all skill levels in health and safety. The institution divides its courses into different categories.
- Core Skills: focuses on the fundamentals of health and safety that everyone must know
- Management Education: aims to educate managers who are responsible for delivering the businesses objectives in a safe manner
- Executive Education: looks at providing guidance to those responsible for the holistic delivery of a business’s objectives and targets
- Professional Development: aims at providing high-quality education to health and safety professionals
- Tailored training courses: aim at providing good health and safety education in a number of different sectors and niches
Benefits of membership
An IOSH membership offers far more than professional recognition. At every grade, members gain access to a range of resources designed to support career development, from industry insights and IOSH Magazine to mentoring opportunities, networking events and specialist groups.
The Blueprint CPD platform allows members to track their learning and skill development, ensuring their knowledge remains current. Higher-level grades also open doors to influence policy, contribute to professional debates and help shape the future of occupational safety and health. The right grade also allows members to use professional post nominals such as TechIOSH, CertIOSH, CMIOSH or CFIOSH, which are recognised markers of competence and credibility across industries worldwide.
Common FAQs on IOSH Membership
CMIOSH refers to Chartered Member of IOSH, a professional status that reflects high-level competence, ethical practice and a commitment to continuing development.
To achieve Technical Membership, you must hold an IOSH accredited Level 3 qualification such as the NEBOSH General Certificate and have at least one year of relevant work experience.
GradIOSH was the former name for what is now called Certified Member (CertIOSH). It typically requires a relevant degree-level qualification and two years of experience, or equivalent experience through the experiential route.
