Harmful Substances in Food Regulations

Regulation 3	Prohibition of import and sale of food containing certain substances in excessive concentrations
3	A person must not import, consign, deliver, manufacture or sell, for human consumption, any food of a description specified in Column D of the First Schedule which contains any substance specified opposite thereto in Column B, or the description of such substance in Column C, in greater concentration than is specified opposite thereto in Column E.
Regulation 3A	Prohibition of import and sale of fish, meat or milk etc. containing prohibited substances
3A	A person must not import, sell or consign or deliver for sale for human consumption, any fish, meat, milk, dried milk, condensed milk or reconstituted milk which contains any substance specified in the Second Schedule.

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First Schedule Maximum concentration of certain substances present in specified foods

A	B	C	D	E
Item	Substance	Description of substance	Description of food	Maximum concentration
1.	Aflatoxin	Group of bis- furanocoumarin compounds and includes aflatoxin B 1, B 2, G 1, G 2, M 1, M 2, P 1 and aflatoxicol	Any food other than peanut or its products	15 micrograms per kilogram of the food.
1.	Aflatoxin		Peanuts or peanut products	20 micrograms per kilogram of the food.
2.	Amoxycillin		Muscle, liver and kidney of all food animals	50 micrograms per kilogram of the food.
2.	Amoxycillin		Milk	4 micrograms per kilogram of the food.
3.	Ampicillin		Muscle, liver and kidney of all food animals	50 micrograms per kilogram of the food.
3.	Ampicillin		Milk	4 micrograms per kilogram of the food.
4.	Bacitracin		Muscle, liver and kidney of bovine, porcine and poultry	500 micrograms per kilogram of the food.
4.	Bacitracin		Milk	500 micrograms per kilogram of the food.
5.	Benzylpenicillin		Muscle, liver and kidney of all food animals	50 micrograms per kilogram of the food.
5.	Benzylpenicillin		Milk	4 micrograms per kilogram of the food.
6.	Carbadox	Quinoxaline-2- carboxylic acid	Muscle of porcine	5 micrograms per kilogram of the food.
6.	Carbadox	Quinoxaline-2- carboxylic acid	Liver of porcine	30 micrograms per kilogram of the food.
7.	Ceftiofur	Desfuroylceftiofur	Muscle of bovine and porcine	1000 micrograms per kilogram of the food.
			Liver of bovine and porcine	2000 micrograms per kilogram of the food.
			Kidney of bovine and porcine	6000 micrograms per kilogram of the food.
			Milk	100 micrograms per kilogram of the food.
8.	Chlortetracycline	Sum of the parent drug and its 4-epimers	Muscle of all food animals	100 micrograms per kilogram of the food.
			Liver of all food animals	300 micrograms per kilogram of the food.
			Kidney of all food animals	600 micrograms per kilogram of the food.
			Milk	100 micrograms per kilogram of the food.
9.	Cloxacillin		Muscle, liver and kidney of all food animals	300 micrograms per kilogram of the food.
9.	Cloxacillin		Milk	30 micrograms per kilogram of the food.
10.	Colistin		Muscle and liver of bovine, porcine and poultry	150 micrograms per kilogram of the food.
			Kidney of bovine, porcine and poultry	200 micrograms per kilogram of the food.
			Milk	50 micrograms per kilogram of the food.
11.	Danofloxacin		Muscle of bovine and poultry	200 micrograms per kilogram of the food.
			Muscle of porcine	100 micrograms per kilogram of the food.
			Liver of bovine and poultry	400 micrograms per kilogram of the food.
			Liver of porcine	50 micrograms per kilogram of the food.
			Kidney of bovine and poultry	400 micrograms per kilogram of the food.
			Kidney of porcine	200 micrograms per kilogram of the food.
12.	Dicloxacillin		Muscle, liver and kidney of all food animals	300 micrograms per kilogram of the food.
12.	Dicloxacillin		Milk	30 micrograms per kilogram of the food.
13.	Dihydro- streptomycin	Sum of dihydrostrepto- mycin and streptomycin	Muscle and liver of bovine, porcine and poultry	500 micrograms per kilogram of the food.
			Kidney of bovine, porcine and poultry	1000 micrograms per kilogram of the food.
			Milk	200 micrograms per kilogram of the food.
14.	Dimetridazole		Muscle, liver and kidney of porcine and poultry	5 micrograms per kilogram of the food.
15.	Doxycycline		Muscle of bovine, porcine and poultry	100 micrograms per kilogram of the food.
			Liver of bovine, porcine and poultry	300 micrograms per kilogram of the food.
			Kidney of bovine, porcine and poultry	600 micrograms per kilogram of the food.
16.	Enrofloxacin	Sum of enrofloxacin and ciprofloxacin	Muscle of bovine, porcine and poultry	100 micrograms per kilogram of the food.
			Liver of bovine	300 micrograms per kilogram of the food.
			Liver of porcine and poultry	200 micrograms per kilogram of the food.
			Kidney of bovine	200 micrograms per kilogram of the food.
			Kidney of porcine and poultry	300 micrograms per kilogram of the food.
			Milk	100 micrograms per kilogram of the food.
17.	Erucic acid	The fatty acid cis-docos-13- enoic acid	Any food to which oil or fat or a mixture thereof has been added	5 per centum by weight of their fatty acid content of all the oils and fats in the food.
17.	Erucic acid	The fatty acid cis-docos-13- enoic acid	Any oil or fat or any mixture thereof	5 per centum by weight of their fatty acid content.
18.	Erythromycin		Muscle, liver and kidney of bovine, porcine and poultry	400 micrograms per kilogram of the food.
18.	Erythromycin		Milk	40 micrograms per kilogram of the food.
19.	Flumequine		Muscle and liver of bovine, porcine and poultry	500 micrograms per kilogram of the food.
19.	Flumequine		Kidney of bovine, porcine and poultry	3000 micrograms per kilogram of the food.
20.	Furaltadone		Muscle of porcine and poultry	0 microgram per kilogram of the food.
21.	Furazolidone		Muscle, liver and kidney of bovine, porcine and poultry	0 microgram per kilogram of the food.
22.	Gentamicin		Muscle of bovine, porcine and poultry	100 micrograms per kilogram of the food.
			Liver of bovine and porcine	2000 micrograms per kilogram of the food.
			Kidney of bovine and porcine	5000 micrograms per kilogram of the food.
			Liver and kidney of poultry	100 micrograms per kilogram of the food.
			Milk	200 micrograms per kilogram of the food.
23.	Ivermectin	22, 23-Dihydro- avermectin B1a (H2B1a)	Liver of bovine	100 micrograms per kilogram of the food.
23.	Ivermectin	22, 23-Dihydro- avermectin B1a (H2B1a)	Liver of porcine	15 micrograms per kilogram of the food.
24.	Josamycin		Muscle and liver of poultry	200 micrograms per kilogram of the food.
24.	Josamycin		Kidney of poultry	400 micrograms per kilogram of the food.
25.	Kitasamycin		Muscle, liver and kidney of porcine and poultry	200 micrograms per kilogram of the food.
26.	Lincomycin		Muscle of bovine, porcine and poultry	100 micrograms per kilogram of the food.
			Liver of bovine, porcine and poultry	500 micrograms per kilogram of the food.
			Kidney of bovine, porcine and poultry	1500 micrograms per kilogram of the food.
			Milk	150 micrograms per kilogram of the food.
26A.	Malachite green	Sum of malachite green and leucomalachite green	Any food (including live fish, live reptiles and live poultry)	0 microgram per kilogram of the food.
26B.	Melamine		Milk	1 milligram per kilogram of the food.
			Any food intended to be consumed principally by persons of an age group into which children under the age of 36 months fall	1 milligram per kilogram of the food.
			Any food intended to be consumed principally by pregnant or lactating women	1 milligram per kilogram of the food.
			Any other food	2.5 milligrams per kilogram of the food.
27.	Metronidazole		Muscle, liver and kidney of porcine and poultry	0 microgram per kilogram of the food.
28.	Neomycin		Muscle and liver of bovine, porcine and poultry	500 micrograms per kilogram of the food.
			Kidney of bovine, porcine and poultry	10000 micrograms per kilogram of the food.
			Milk	500 micrograms per kilogram of the food.
29.	Oxolinic acid		Muscle of bovine, porcine and poultry	100 micrograms per kilogram of the food.
29.	Oxolinic acid		Liver and kidney of bovine, porcine and poultry	150 micrograms per kilogram of the food.
30.	Oxytetracycline	Sum of parent drug and its 4-epimer	Muscle of all food animals	100 micrograms per kilogram of the food.
			Liver of all food animals	300 micrograms per kilogram of the food.
			Kidney of all food animals	600 micrograms per kilogram of the food.
			Milk	100 micrograms per kilogram of the food.
31.	Sarafloxacin		Muscle of poultry	10 micrograms per kilogram of the food.
31.	Sarafloxacin		Liver and kidney of poultry	80 micrograms per kilogram of the food.
32.	Spectinomycin		Muscle of bovine, porcine and poultry	500 micrograms per kilogram of the food.
			Liver of bovine, porcine and poultry	2000 micrograms per kilogram of the food.
			Kidney of bovine, porcine and poultry	5000 micrograms per kilogram of the food.
			Milk	200 micrograms per kilogram of the food.
33.	Streptomycin	Sum of dihydro- streptomycin and streptomycin	Muscle and liver of bovine, porcine and poultry	500 micrograms per kilogram of the food.
			Kidney of bovine, porcine and poultry	1000 micrograms per kilogram of the food.
			Milk	200 micrograms per kilogram of the food.
34.	Sulfonamides	Sum of all substances belonging to the sulfonamide group	Muscle, liver and kidney of all food animals	100 micrograms per kilogram of the food.
34.	Sulfonamides	Sum of all substances belonging to the sulfonamide group	Milk	100 micrograms per kilogram of the food.
35.	Tetracycline	Sum of parent drug and its 4-epimer	Muscle of all food animals	100 micrograms per kilogram of the food.
			Liver of all food animals	300 micrograms per kilogram of the food.
			Kidney of all food animals	600 micrograms per kilogram of the food.
			Milk	100 micrograms per kilogram of the food.
36.	Tiamulin	Sum of metabolites that may be hydrolysed to 8-alpha- hydroxymutilin	Muscle of porcine and poultry	100 micrograms per kilogram of the food.
			Liver of porcine	500 micrograms per kilogram of the food.
			Liver of poultry	1000 micrograms per kilogram of the food.
37.	Trimethoprim		Muscle, liver and kidney of bovine, porcine and poultry	50 micrograms per kilogram of the food.
37.	Trimethoprim		Milk	50 micrograms per kilogram of the food.
38.	Tylosin		Muscle, liver and kidney of bovine, porcine and poultry	200 micrograms per kilogram of the food.
38.	Tylosin		Milk	50 micrograms per kilogram of the food.
39.	Virginiamycin		Muscle of porcine	100 micrograms per kilogram of the food.
			Liver of porcine	300 micrograms per kilogram of the food.
			Kidney of porcine	400 micrograms per kilogram of the food.

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Second Schedule Prohibited Substances

Dienoestrol ((E,E)-4,4'-(diethylideneethylene) diphenol) including salts and esters thereof.
Diethylstilboestrol ((E)-B-diethylstilbene-4,4'-diol) including salts and esters thereof.
Hexoestrol (meso-4,4'-(1,2-diethylethylene) diphenol) including salts and esters thereof.
Avoparcin.
Clenbuterol.
Chloramphenicol.
Salbutamol.

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Note : Please browse https://www.elegislation.gov.hk/?_lang=en for details of the food law in Chapter 132.