HMTc Standards
The Heavy Metal Tested & Certified (HMTc) standard is published per subcategory, in each product form’s native basis, the moment that subcategory is defensibly ready. Each analyte limit is held behind five shipping gates; an analyte renders a firm value only when it clears all five. This page is the live completeness ledger.
- Methodology: HMTc-10 / P97-clean / P45-dirty (CLAUDE.md Part 19, Governing Principles v2.0)
- Standard version: 2.2 (2026-06-09)
- Analyte panel (10): Pb, tAs, iAs, Cd, tHg, MeHg, Ni, Cr-VI, Sn, Al
- Published today: 3 firm analyte limits across 2 subcategories of 15 locked. The standard widens as the evidence base and governance review clear more cells.
Completeness by category
| Category | Subcategories locked | Published | Progress |
|---|---|---|---|
| Grains, Cereals, and Rice Products (cat 3) | 2/12 | 0 | 0 of 12 subcategories published |
| Seafood (cat 6) | 5/6 | 1 | 1 of 6 subcategories published |
| Dairy and Milk Products (cat 24) | 1/9 | 0 | 0 of 9 subcategories published |
| Culinary Oils and Fats (cat 30) | 2/2 | 0 | 0 of 2 subcategories published |
| Sweeteners and Syrups (cat 31) | 1/4 | 0 | 0 of 4 subcategories published |
| Condiments, Sauces and Dressings (cat 32) | 1/5 | 0 | 0 of 5 subcategories published |
| Chocolate, Cocoa and Confectionery (cat 33) | 1/3 | 0 | 0 of 3 subcategories published |
| Herbs, Spices, Seasonings and Salt (cat 34) | 2/4 | 1 | 1 of 4 subcategories published |
Subcategory standards
Grains, Cereals, and Rice Products
- Breakfast cereal — non-rice (wheat, oat, corn, mixed-grain) — in development
- Breakfast cereal — rice-based (puffed rice, rice flakes, crisped rice) — in development
Seafood
- Fish — freshwater (tilapia, catfish, trout) — in development
- Fish — marine, non-predatory (sardines, anchovies, salmon, cod) — in development
- Fish — marine, predatory (tuna, swordfish, shark, king mackerel) — 2 published
- Shellfish (shrimp, crab, lobster, clams, oysters, mussels) — in development
- kelp foods (nori, wakame, kombu, dulse — as food products) — in development
Dairy and Milk Products
- Butter and ghee — in development
Culinary Oils and Fats
- Olive oil — in development
- Other cooking oils (canola, sunflower, coconut, avocado, sesame) — in development
Sweeteners and Syrups
- Honey and syrups (maple, agave, molasses) — in development
Condiments, Sauces and Dressings
- Vinegar — in development
Chocolate, Cocoa and Confectionery
Herbs, Spices, Seasonings and Salt
- dried seasonings (turmeric, cinnamon, paprika, oregano, cumin, chili powder, pepper) — 1 published
- Salt (table, sea, Himalayan) — in development
The threshold-selection methodology (clean P97 / dirty P45, native-basis pooling, the regulatory cap, the five gates) is documented in Program Structure. The evidence each standard is applied to lives on the independent Heavy Metal Index; HMTc cites it one-way and never the reverse.