Founded in 1914, the CAS is the world’s only actuarial organization focused exclusively on property and casualty risks and serves over 11,000 members worldwide.

CAS REGISTRY®, the CAS substance collection, is the premier source relied upon by scientists and regulators worldwide for accurate information on chemical substances.

Quickly confirm chemical names, CAS Registry Numbers®, structures or basic physical properties by searching compounds of general interest or leveraging an API connection.

Feb 18, 2025 · The Casualty Actuarial Society (CAS) is excited to announce the launch of the CAS Portal, our new and improved e-commerce platform and user database.

Sep 9, 2025 · With these changes, by April 2026, all CAS exams except Exam 6I* will be offered at least twice a year, providing candidates with greater flexibility and more opportunities to advance through …

As part of basic education, the CAS requires Validation by Educational Experience (VEE) topics. Validation of these topics is required in addition to the preliminary education exams listed. There are …

If you are a current CAS member, candidate, Student Central member or have ever had a CAS account in our previous portal, please use the button below to access our new system.

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