Fin fish and crayfish

Fluridone—0.5 ppm.a

40 CFR 180.420

Fin fish

Glyphosate—0.25 ppm.a

40 CFR 180.364


Glyphosate—3 ppm.a

40 CFR 180.364

Fin fish

Simazine—12 ppm.a

40 CFR 180.213a

All fish

2,4-D—1 ppm.a

40 CFR 180.142

Salmonids, catfish, and lobster

Oxytetracycline—2 ppm.

21 CFR 556.500

All fish

Sulfamerazine—no residue permitted.

21 CFR 556.660

Salmonids and catfish

Sulfadimethoxine/ormetoprim combination—0.1 ppm.

21 CFR 556.640

All fish

Unsanctioned drugsb—no residue permitted.

Sec 615.200 Compliance Policy Guide


Toxic elements: 76 ppm arsenic; 3 ppm cadmium; 12 ppm chromium; 1.5 ppm lead; 70 ppm nickel.

FDA Guidance Documents

Clams, oysters, and mussels

Toxic elements: 86 ppm arsenic; 4 ppm cadmium; 13 ppm chromium; 1.7 ppm lead; 80 ppm nickel.

FDA Guidance Documents

All fish

Methyl mercury—1 ppm.c

Sec 540.600 Compliance Policy Guide

All fish

Paralytic shellfish poison—0.8 ppm (80 µg/100 g) saxitoxin equivalent.

Sec 540.250 Compliance Policy Guide, and Compliance Program 7303.842

Clams, mussels and oysters, fresh, frozen or canned

Neurotoxic shellfish poison—0.8 ppm (20 mouse units/100 grams) brevetoxin-2 equivalent.

National Shellfish Sanitation Program Manual of Operations

All fish

Amnesic shellfish poison—20 ppm domoic acid, except in the viscera of dungeness crab, where 30 ppm is permitted.

Compliance Program 7303.842

All fish

Hard or sharp foreign object—generally 0.3 (7 mm) to 1.0 (25 mm) in length.

Sec 555.425 Compliance Policy Guide

aThese values are tolerances;

bSanctioned drugs are approved drugs and drugs used under an INAD;

cThe term “fish” refers to fresh or saltwater fin fish, crustaceans, other forms of aquatic animal life other than birds or mammals, and all mollusks, as defined in 21 CFR 123.3(d) (FDA, 2005c).


The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement