BLUE BOOK Fish Health Section BLUE BOOK 2020 Edition Suggested Procedures for the Detection and Identification of Certain Finfish and Shellfish Pathogens Preface Introduction Citation Guidelines Section 1 Diagnostic Procedures for Finfish and Shellfish Pathogens Section 2 USFWS/AFS-FHS Standard Procedures for Aquatic Animal Health Inspections Section 3 QA/QC Model for Fish Health Labs