The instrument
This page records the heavy-metal maximum levels set by Guyana Fisheries (Products) Regulations 2023 - environmental contaminants, the instrument of Veterinary Public Health Unit (Guyana Ministry of Health), 2023. Every value below is transcribed into the Heavy Metal Index register from the primary text and is the value an HMTc standard cites when this jurisdiction binds a certification limit. It is a record of law, not an HMTc threshold.
Maximum levels
All values µg/kg (ppb), in the basis the instrument states. 18 maximum levels across 3 analytes and 8 product categories, grouped by analyte and ordered by limit.
| Limit µg/kg | Basis | Product scope | Provision |
|---|---|---|---|
| Lead (Pb)4 limits | |||
| 300 | muscle meat, skin and viscera excluded where applicable | muscle meat of all fish except where otherwise indicated | Schedule Four Part I Table 1 ppm table |
| 500 | muscle meat, skin and viscera excluded where applicable | crustaceans, excluding brown meat of crabs and thorax meat of Palinuridae lobsters | Schedule Four Part I Table 1 ppm table |
| 1000 | muscle meat, skin and viscera excluded where applicable | cephalopods without viscera | Schedule Four Part I Table 1 ppm table |
| 1500 | muscle meat, skin and viscera excluded where applicable | bivalve molluscs | Schedule Four Part I Table 1 ppm table |
| Cadmium (Cd)7 limits | |||
| 50 | muscle meat, skin and viscera excluded where applicable | muscle meat of all fish except where otherwise indicated | Schedule Four Part I Table 1 ppm table |
| 100 | muscle meat, skin and viscera excluded where applicable | little tuna, marlin, plain bonito, rays, and tunas | Schedule Four Part I Table 1 ppm table |
| 200 | muscle meat, skin and viscera excluded where applicable | bullet tuna | Schedule Four Part I Table 1 ppm table |
| 300 | muscle meat, skin and viscera excluded where applicable | swordfish | Schedule Four Part I Table 1 ppm table |
| 500 | muscle meat, skin and viscera excluded where applicable | crustaceans, excluding brown meat of crabs and thorax meat of Palinuridae lobsters | Schedule Four Part I Table 1 ppm table |
| 1000 | muscle meat, skin and viscera excluded where applicable | bivalve molluscs | Schedule Four Part I Table 1 ppm table |
| 1000 | muscle meat, skin and viscera excluded where applicable | cephalopods without viscera | Schedule Four Part I Table 1 ppm table |
| Mercury, total (tHg)7 limits | |||
| 500 | muscle meat, skin and viscera excluded where applicable | bivalve molluscs | Schedule Four Part I Table 1 ppm table |
| 500 | muscle meat, skin and viscera excluded where applicable | cephalopods without viscera | Schedule Four Part I Table 1 ppm table |
| 500 | muscle meat, skin and viscera excluded where applicable | crustaceans, excluding brown meat of crabs and thorax meat of Palinuridae lobsters | Schedule Four Part I Table 1 ppm table |
| 500 | muscle meat, skin and viscera excluded where applicable | muscle meat of all fish except where otherwise indicated | Schedule Four Part I Table 1 ppm table |
| 1000 | muscle meat, skin and viscera excluded where applicable | kingfish, mullets, sailfish, shark and dogfish, and snake mackerel | Schedule Four Part I Table 1 ppm table |
| 1000 | muscle meat, skin and viscera excluded where applicable | little tuna, marlin, plain bonito, rays, and tunas | Schedule Four Part I Table 1 ppm table |
| 1000 | muscle meat, skin and viscera excluded where applicable | swordfish | Schedule Four Part I Table 1 ppm table |
Where HMTc cites it
Cells where this instrument holds the strictest government value in force among credible regulators, and therefore binds a published HMTc limit.
A limit recorded above binds nothing today only because another government holds a stricter value for every published cell. It may still bind later, as other jurisdictions relax or as a new subcategory is published.
How this interacts with HMTc
HMTc certification standards adopt the strictest existing maximum level set by any credible government, applied cell-by-cell. Where this instrument holds the strictest value for a (product, analyte) cell, it binds the HMTc limit and the standard cites this page. This page does not set or justify any HMTc threshold; it records the sovereign requirement the program measures against.
A reference page is a record of law, not an HMTc threshold. It states what a government requires; the standard page states what the program requires, and names which instrument binds each cell.