38573d6e_International_Joint_Commission__Delisting_Guideline
[BUI] FISH TUMORS OR OTHER DEFORMITIES [Listing Guideline] When the incidence rates of fish tumors or other deformities exceed rates at unimpacted control sites or when survey data confirm the presence of neoplastic or preneoplastic liver tumors in bullheads or suckers. [Delisting Guideline] 
When the incidence rates of fish tumors or other deformities do not exceed rates at unimpacted control sites and when survey data confirm the absence of neoplastic or preneoplastic liver tumors in bullheads or suckers.
International Joint Commission
Delisting Guideline