Pass your CASAC exam with preparation that works the way the exam thinks. This complete CASAC study guide and practice workbook combines concept-first review with applied clinical judgment training for the credentialed alcoholism and substance abuse counselor examination. Ten structured chapters cover every core competency: foundations of substance use disorder counseling, pharmacology of substances and medication-supported treatment, screening and assessment, treatment planning and case management, counseling skills, co-occurring disorders, ethics and confidentiality, documentation, and test-taking strategy. Then the practice workbook puts your judgment under exam conditions: 740+ exam-level practice questions with complete rationales 10 unfolding clinical judgment case studies that evolve the way real client situations do A dedicated pharmacology and medication-supported treatment workbook Crisis response and prioritization drills for the scenarios the exam loves Chapter reinforcement exercises across every content area A rapid-review challenge built for your final week A consolidated answer key — practice first, then check, with a full rationale for every question Every question is written at true examination difficulty, with balanced answer options and explanations that teach the underlying principle, not just the letter. Whether you are preparing for your addiction counselor certification for the first time or returning for a second attempt, this guide builds the decision-making pattern the exam rewards: client safety first, scope of practice always, ethics without exception. This is an independent study resource for substance abuse counselor exam preparation and is not affiliated with any credentialing or testing organization.