OAR 635-007-0970
Fish Disease and Pathogen Categories

(1) “Category I” or “Emergency” fish disease agents are those for which there is no known treatment and that have not been determined to occur in Oregon as of September 1, 2003. Disease agents in this category are the European strain of Viral Hemorrhagic Septicemia (VHS), Oncorhynchus masou virus (OMV) and Channel Catfish Virus (CCV). Disease agents may be added to this category as they are identified.
(2) “Category II” or “Certifiable” disease agents can be highly contagious, may cause catastrophic losses and do not have a known cure. Disease agents in this category are the North American strain of Viral Hemorrhagic Septicemia (VHS), Infectious Hematopoietic Necrosis Virus (IHN), Infectious Pancreatic Necrosis Virus (IPN), Infectious Salmon Anemia (ISA), Spring Viremia of Carp (SVC), and Piscirickettsia salmonis. Disease agents may be added to this category as they are identified in state waters or may be moved to a more or less strict category as disease concerns change.
(3) “Category III” or “Reportable” disease agents may be enzootic in populations or watersheds but are not necessarily of such concern as to prevent all transfer or release of fish. This category includes drug resistant strains of fish disease agents otherwise falling in Category IV. Disease agents in this category are Erythrocytic Inclusion Body Syndrome (EIBS virus), Viral Erythrocytic Necrosis Virus (VEN), sturgeon iridovirus, Renibacterium salmoninarum (bacterial kidney disease), Flavobacterium psychrophilum (cold water disease), Aeromonas salmonicida (furunculosis disease), Yersinia ruckeri (enteric red mouth disease), drug resistant strains of bacterial disease agents, Myxobolus cerebralis (whirling disease), Tetracapsuloides bryosalmonae (Proliferative Kidney Disease), Ceratomyxa shasta (ceratomyxosis), and Nucleospora salmonis. Disease agents may be added to this category as they are identified in state waters or may be moved to a more or less strict category as disease concerns change.
(4) “Category IV” or “Historical” disease agents are those associated with a particular area, water body, or facility either in Oregon or in another state or country in which fish are raised or where a disease agent is associated with an intermediate non-fish host. This category also includes Category I through III diseases if previously found at a particular facility but no longer occurring there. Disease agents in this category are flatworms, round worms, tapeworms, ciliated and flagellated parasites, myxosporean (other than Myxobolus cerebralis, Tetracapsuloides bryosalmonae and Ceratomyxa shasta), microsporidian parasites (other than Nucleospora salmonis), fungal agents, bacterial agents, transient viral agents, and other classes of infectious agents not previously listed. Disease agents may be added to this category as they are identified in state waters or may be moved to a stricter category as disease concerns change.

Source: Rule 635-007-0970 — Fish Disease and Pathogen Categories, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=635-007-0970 (accessed May 26, 2025).

635–007–0501
Definitions 635–007–0502
Purpose of the Native Fish Conservation Policy 635–007–0503
Native Fish Conservation Policy Goals 635–007–0504
Key Elements of Native Fish Conservation Policy 635–007–0505
Implementing the Native Fish Conservation Policy 635–007–0506
Education and Training 635–007–0507
Interim Criteria 635–007–0509
Implementation of Interim Criteria 635–007–0530
Sale of Salmon and Trout and Their Eggs 635–007–0535
Releasing Resident Fish in Private Waters 635–007–0542
Purpose of the Hatchery Management Policy 635–007–0543
Hatchery Management Policy Goals 635–007–0544
Operating Principles for Hatchery Management 635–007–0545
Hatchery Program Management Plans 635–007–0547
Fish Hatchery Record Keeping 635–007–0548
Training of Fish Hatchery Personnel 635–007–0595
Transgenic Fish 635–007–0600
Permit Required to Transport, Hold, or Release Fish 635–007–0605
Fish Transport Permit Application 635–007–0610
Shipping Requirements 635–007–0615
Unlawful Import and Release 635–007–0620
Transport Release of Mosquito Fish (Gambusia sp.) 635–007–0625
Revocation of Fish Transport Permit 635–007–0650
Fish Propagation License Required 635–007–0655
Fish Propagation License Application Process 635–007–0660
Duties of Fish Propagation Licensees 635–007–0665
Purchase of Fish from Fish Propagation Licensee 635–007–0670
Revocation of Fish Propagation License 635–007–0680
Relation Between Fish Propagation License and Private Salmon Hatchery Permit 635–007–0700
Purpose, Policy and Definition 635–007–0705
Obtaining Sturgeon and Eggs for Propagation 635–007–0710
Special Permit Rules to Collect Male and Oversize Female Sturgeon 635–007–0720
Possession of Sturgeon for Spawning and Propagation 635–007–0725
Sturgeon Propagation Permit Required 635–007–0730
Permit Application Process 635–007–0735
Duties of Sturgeon Propagation Permittees 635–007–0740
Purchase of Sturgeon from Sturgeon Propagation Permittee 635–007–0745
Revocation of Sturgeon Propagation Permit 635–007–0820
Salmon Production Programs 635–007–0900
Scientific Taking Permit Required 635–007–0910
Scientific Taking Permit Application — Fish 635–007–0920
Report Requirement 635–007–0930
Transport Authority 635–007–0940
Nongame Fish Protected 635–007–0950
Revocation of Permit 635–007–0960
Purpose 635–007–0965
Fish Health Management Policy 635–007–0970
Fish Disease and Pathogen Categories 635–007–0975
Import, Export or Transfer of Pathogens and Diseases 635–007–0980
Additional Reference Material for Fish Disease Management 635–007–0985
Inspection and Detection of Disease Agents at the Department’s Facilities 635–007–0990
Inspection and Detection of Disease Agents at Non-Department Facilities 635–007–0995
Containment and Treatment of Fish Disease Agents 635–007–1000
Carcasses for Stream Enrichment

May 26, 2025

Rule 635-007-0970's source at or​.us