For a buyer placing a PO with a dinnerware factory, the riskiest part of the order is not the glaze — it is the paperwork behind it. This guide walks through what US and Canadian buyers should verify before committing to tooling or a first production run, and the documents a factory should be able to produce without "checking with the office".
Why compliance is the first sourcing question
Retail and food-service buyers are increasingly treating food-contact compliance as a procurement gate, not an afterthought. Unlike a paid customisation option, compliance cannot be added late: the glaze is fired into the body, and reversing a non-compliant batch means scrapping it. So the practical question for a sourcing team is not "is ceramic safe?" but "can the factory prove, with test data and documentation, that this specific glaze firing meets the limits my market applies?"
Two important clarifications that save time:
- Ceramics are not plastics. BPA is not a relevant test for dinnerware. The substances that matter for fired ceramics are migratable heavy metals — chiefly lead and cadmium from the glaze and decoration.
- There is no single "FDA approval" sticker for dinnerware. Under the US Food, Drug and Cosmetic Act, the responsible party (the importer or the manufacturer) is expected to make sure the finished ware is safe and complies with FDA's guidance. What a buyer should collect are the test reports and compliance statements that demonstrate that.
Who is responsible (and why you ask for reports, not a certificate)
In the US the legal responsibility for a compliant finished article sits with the firm that imports or sells it — which in practice means the buyer wants contractual assurance backed by data from the factory. The documents that de-risk a PO are:
- Migration test reports from a lab using the standard test method (US: ASTM C738, the acetic-acid leach test for lead and cadmium).
- A compliance statement that the article meets the applicable guidance (e.g. the FDA's Compliance Policy Guides for lead and cadmium in ceramicware).
- For California: a Prop 65 position — either a warning, or evidence the article falls below the relevant "safe harbour" levels (see below).
A factory that runs its own internal QC on every firing line (inline checks at multiple stations, a provincial lab for migration testing) is in a much stronger position to hand over this evidence than one that only produces it on request.
The four categories in the FDA lead table
The FDA Compliance Policy Guide Sec. 545.450 (Pottery - Ceramics; Lead) sets action levels for lead leached from the ware, measured in µg/mL from the standard extraction. Buyers usually see them grouped by article type:
| Ware category | Examples | FDA CPG lead action level (µg/mL) |
|---|---|---|
| Flatware | plates, saucers | avg. 3.0 |
| Small hollowware | small bowls | 2.0 |
| Large hollowware | platters, large bowls | 1.0 |
| Cups and mugs | cups, mugs | 0.5 |
Cadmium is covered by FDA CPG Sec. 545.400 (Pottery - Ceramics; Cadmium), with lower action levels for the same categories (e.g. 0.5 µg/mL for cups and mugs). These are the numbers a buyer's QA team will ask a supplier to demonstrate, and they are the numbers on the test report a supplier should be able to table.
Exact thresholds do get revised, and a certified lab's report is the final word. For a buyer, the point is to see fresh, per-article-type migration numbers — not a one-line assurance — and to confirm the samples tested match the decoration and glaze actually being shipped.
California Prop 65: it is a warning law, not a ban
California's Proposition 65 ("The Safe Drinking Water and Toxic Enforcement Act") does not ban the sale of ceramic tableware. It is a right-to-know, warning requirement. A product sold in California that exposes consumers to a listed chemical above its safe harbour level must carry a warning unless it qualifies for an exemption.
For dinnerware the relevant chemicals are again lead and cadmium, and the safe harbour concept is exposure-based (in micrograms per day). In practical terms a buyer has three options:
- Ship with Prop 65 warnings where the risk is real and disclosed — common for higher-margin decorated ware.
- Use glazes and decoration that test below safe harbour, so the article can be sold without a warning.
- Negotiate which of the two the brand wants, in writing, before the PO.
Because the obligation lands on the business selling into California, an importer should have the conversation about the warning strategy with the factory early — the glaze recipe affects test results, and changing it later is expensive.
Canada, in brief
Canada approaches food-contact ceramics through Health Canada limits applied to glazed ware, with lead action levels for the same ware categories (cups and mugs, large/small hollowware, flatware). For goods that can come into contact with children, the Consumer Product Safety side imposes additional thinking — e.g. products for very young children face stricter expectations. A buyer exporting to both the US and Canada should ask for reports that cover both markets rather than a single-region statement.
The buyer's pre-PO checklist
Before you commit tooling, samples or a first order, get the following in writing:
- Lead & cadmium migration report (ASTM C738) covering each article type and decoration you intend to sell — flatware, cups/mugs, hollowware.
- Fresh samples: test reports must match the glaze/decoration actually ordered, and the test date should be recent (preferably covering the production batch, not a 5-year-old generic figure).
- FDA CPG compliance statement referencing the applicable guidance for lead and cadmium.
- Prop 65 position for any ware sold into California — warning or safe-harbour evidence, decided before the PO.
- Canadian limits confirmation if you ship to Canada.
- Factory QC evidence the line is checked — inline inspection, batch tracking, and a migration-testing capability in-house.
- Consistency clause: your spec sheet ties "compliance-approved" to the exact article number, so a glaze change that affects migration must trigger re-testing, not silent substitution.
- Terms confirming responsibility for compliance documents and test traceability sit with the supplier.
A factory that can answer all eight points with documents and data is a lower-risk partner than one that offers a lower price and a promise. That, more than the glaze, is what decides whether your first dinnerware programme ships without interruption.