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A pass mark against a graded scale — one voluntary, one required by law.
The EU energy label is mandatory and comparative: it grades a product on a lettered scale shown as coloured arrows, so two labelled products can be ranked against each other. Energy Star is voluntary and a threshold: a product either qualifies or does not, and the mark gives no indication of the margin. A product carrying both is making two different kinds of claim.
A pass mark against a graded scale, for the same property.
Drawn from the visual attributes recorded for each symbol. Only traits the two records disagree about are listed.
| Trait | Energy Star mark | EU energy label |
|---|---|---|
| Built from | stars and squares | arrows, squares and letter like |
| Colour | blue and white | green, yellow, orange, red, white and black |
| Energy Star mark | EU energy label | |
|---|---|---|
| Mandatory? | No — voluntary programme | Yes — required by regulation |
| Graded or pass/fail | Pass or fail against a threshold | Graded on a lettered scale |
| Who runs it | The US Environmental Protection Agency | The European Union |
| Lets you compare two products? | Only as qualified or not | Yes — that is the point of the scale |
| Relationship (from Symbolwise's records) | Commonly confused with EU energy label — A pass mark against a graded scale, for the same property. | Commonly confused with Energy Star mark — Both grade energy performance; one is a mandatory graded scale and the other a voluntary pass mark. |
Wikipedia · retrieved 2026-07-31
Tertiary reference. Used for what a mark depicts, who owns it and whether a scheme or regulation stands behind it. Where a regulation is named, it is reported by this source rather than read directly, so no meaning is typed `official` on that basis alone.
Wikipedia · retrieved 2026-07-31
Tertiary reference. Used for what a mark depicts, who owns it and whether a scheme or regulation stands behind it. Where a regulation is named, it is reported by this source rather than read directly, so no meaning is typed `official` on that basis alone.
Biodegradable is close to meaningless on its own: almost everything degrades eventually, and the claim names no timescale and no conditions. Compostable states both. That gap is why unqualified biodegradability claims are restricted in several jurisdictions, and why a compostable mark is worth more than a biodegradable one.
CE covers the European Economic Area; UKCA covers Great Britain. Both are the manufacturer's own declaration that a product meets the requirements applying to it, and for most product categories nobody grants or checks them. Neither is a safety certification or a mark of quality, which is how both are widely read. UKCA's territory is Great Britain rather than the whole United Kingdom, because Northern Ireland follows the EU regime.
The organic scheme is the stricter of the two and prohibits synthetic inputs outright. The green food scheme permits limited use of them under controlled conditions, and exists as an achievable step between conventional production and organic certification. A product carrying the green food mark has met a real standard, and it is not the organic one.
The glass and fork means the material is safe to touch food. It says nothing about heat, and a food-safe container can still melt or leach in a microwave. Wavy lines mean the maker considers it microwave-safe — which is not a certification, because no body defines that mark. If it matters, the manufacturer's instructions are the authority, not the symbol.