The Benefit Determination Guide presents discussions about unemployment insurance law. The discussions are based on state and federal law, state and federal regulations; case law from the United States Supreme Court, the California Supreme Court, lower federal and state courts and Precedent Benefit Decisions issued by the California Unemployment Insurance Appeals Board. There are eight volumes. Each volume provides discussion on one broad issue of unemployment insurance law. Department personnel use the Benefit Determination Guide to make proper decisions about eligibility for unemployment insurance benefits.