ASP and CSP exam guidance
Find exam blueprints and reference lists on the official credential pages.
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Reference books
The most-used study references for ASP, CSP, CIH, QEP and CFPS — and where to buy them from the official publisher.
Browse reference booksOfficial learning resources
Open the issuing organisation’s page to find the latest documents and available downloads.
CIH equation sheets and applicant documents
Use the official CIH document library for equation sheets, exam blueprints and application checklists.
Occupational hygiene technical guidance
Explore guidance for recognising and controlling workplace health exposures.
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