This book sheds new light on the design and installation of drag anchors and plate anchors for offshore service. It provides readers with detailed methodologies for geotechnical design, structural assessment, and installation techniques that are crucial for ensuring the safety and reliability of offshore anchorage systems. The chapters cover topics such as site investigation methods, geotechnical design principles, structural assessment methodologies, and installation and testing recommendations. Expert contributors offer insights into taut, semi-taut, and catenary mooring systems. The author presents an expert analysis of classification protocols while recognizing alternative approaches that meet safety standards. This book invites readers to think through critical questions such as: How can we ensure the reliability of offshore anchorage systems? What are the best practices for site investigation? How do we perform accurate structural assessments? Readers will discover diverse perspectives from practitioners in marine engineering. The empirical research presented here addresses both theoretical perspectives and practical case studies. Particular attention is given to methodologies that support or augment Class Rules without replacing them. This makes the book highly readable while maintaining its scientific rigor. Naval architects, marine engineering students, marine surveyors, and offshore industry professionals will find this book invaluable. It serves as an essential reference for academics in industrial design and engineering courses. Offshore installation managers and senior safety management professionals will benefit from its practical guidance on classification protocols for drag and plate type anchors used in the offshore industry. Whether you are a seasoned expert or new to the field, this book offers indispensable knowledge that will enhance your understanding and application of offshore anchorage systems. This volume is part of a series dedicated to advancing knowledge in marine engineering practices. Researchers in the field of offshore industry will find it particularly beneficial for its comprehensive coverage of current methodologies and best practices.