✗ False

“FDA's ceramic-mug lead rule (CPG Sec. 545.450) mandates keeping decoration off a 20mm zone at the rim/lip of a mug to avoid oral ingestion of decorative components.”

The only 20 mm rim provision present in the sources is section 3 of Canada's Glazed Ceramics and Glassware Regulations (SOR/2016-175), and it does not ban decoration in that zone — it permits exterior decoration within 20 mm of the rim provided the vessel releases no more than 4 mg/L lead and 0.4 mg/L cadmium under the ASTM C927-80 lip-and-rim extraction method, where 20 mm is the depth of extraction solution the rim is submerged in. That is a migration-limit and test-geometry rule, not a keep-off-the-lip decoration mandate, and it is Health Canada's, not FDA's. No text of FDA CPG Sec. 545.450 appears in the source texts, so the attribution to FDA is unsupported here while the substantive mechanism the claim describes is contradicted by the one authority actually provided.

The span it rests on

Any drinking vessel with a distinctive exterior decorative pattern within 20 mm of the rim, when tested in accordance with the method set out in section 2 of the schedule

Copied character for character from laws-lois.justice.gc.ca and matched against the fetched page before this verdict was written.

Sources

Where the claim appeared

Nowhere as worded: the claim is our own wording, drafted from a page listed under the sources to test what that page says.

Re-checks

2026-10-31 held ✗ False
An outside audit pointed out that this verdict rated the claim False while saying no text of FDA CPG Sec. 545.450 was in our sources. Under our own definitions that is No evidence, not False. We have now read the CPG in full. It sets limits on lead leaching from food-contact surfaces, measured by ASTM C738 on six units: 0.5 micrograms per mL for any one cup or mug. It defines flatware and hollowware by their depth below the rim, and it says nothing about decoration near the rim or a 20 mm zone. The rule the claim names requires a leach limit, not a decoration-free rim, so the rating stays False, now resting on the FDA text. The 20 mm figure comes from Canada's SOR/2016-175, which allows rim decoration within limits, as the original reasoning says.
“Contains upon examination of 6 units a level of lead per mL of leaching solution exceeding the guideline by category specified”
fda.gov →

Issue pulse · section queue · last checked 2026-10-31