The need for environmental audits has created a booming engineering niche for environmental assessments. Audits can be used to evaluate the effectiveness of a company's environmental management or assess environmental risks. This book is a guide to those interested in environmental auditing. It offers the rationale and broad background in environmental auditing as well as specificity. Everything is covered, from staffing and client requirements to site visits and data protocol. This is a precise document for those involved in the audit process.