Struggling with complex admission webhooks, outdated PSPs, or bloated policy engines? Enter CEL, Common Expression Language, now built into Kubernetes and quickly becoming the native choice for writing fast, secure, and maintainable policies. In this session, you'll learn the A, B, C of CEL: Authoring expressive rules, binding them to resources with validations and audits, and Controlling workloads through native enforcement, all without third-party controllers. With real-world examples and performance insights, this talk will help platform engineers and cluster admins simplify policy management and embrace the future of Kubernetes-native governance.