Is a symbol required, restricted, certified, or trademarked?

Four statuses that look identical on a pack

Two packages may carry printed symbols of similar appearance: a triangle of arrows on one, a circle of interlocking arrows on the other. To a consumer both present as environmental marks of the same general kind. Legally they may have almost nothing in common. One may be present because a statute requires it, and its absence would be an offence. The other may be present because a private company paid a licence fee for a trademark, and its presence asserts nothing about the product at all.

Every mark on a package occupies one of four legal statuses, and sometimes more than one at once. It may be required: a public authority mandates its presence, and the obligated party — not always the brand owner — faces penalties for omitting it. It may be restricted: the law does not require it, but constrains when it may be used, so that displaying it in the wrong circumstances is an offence or an actionable deception. It may be certified: a private body licenses its use on condition of audited conformity with a published standard, so that unauthorised display is a breach of contract and of trademark. Or it may be simply trademarked: a protected sign whose display records a commercial relationship and nothing more.

The distinction has practical consequences. It determines who can be pursued for a mark's misuse, in what forum, and with what consequences; it determines whether removing a mark is a cost-saving option or a legal violation; and it explains why the same symbol can be compulsory in one market, forbidden in a second, and meaningless in a third.

Required: marks whose absence is the offence

The paradigm of the required mark is Japan's material identification system. Under the Law for Promotion of Effective Utilization of Resources, plastic and paper containers and packaging have been subject to mandatory identification marking since 1 April 2001, with penalties applying to containers manufactured from April 2003; PET bottles for beverages, alcohol and soy sauce, along with steel and aluminium cans, were mandated earlier (METI, n.d.). The obligation departs from producer-centred accounts of labeling in the party it binds: it falls on container manufacturers, on businesses that commission container manufacture, and on importers — and Japan's small-business exemption from the law's recycling obligations does not extend to the marking duty (METI, n.d.). The marks themselves are subject to minimum sizes: six millimetres when printed, eight when embossed.

The United States supplies a second, older example. Following the Society of the Plastics Industry's introduction of the resin identification code in 1988 (ASTM International, 2010), a majority of US states legislated to require the code on plastic containers. The survey most commonly relied on, conducted by the Plastics Industry Association in 2022, found that plastic product identification is or has been required in 40 states, that 36 states currently require identification on at least some plastic products, and that 29 specify a chasing-arrows-style symbol in their statutory text (Plastics Industry Association, 2022). That last figure bears on the restricted status examined below: the mandated design in most of those states is the design that other law now treats as a deceptive recyclability signifier.

Europe's required marks are newer and proliferating. France requires the Triman signalétique together with the Info-tri sorting instructions on household products subject to extended producer responsibility, under Article L541-9-3 of the environmental code — created by Article 17 of the 2020 anti-waste law — and its implementing decree (Décret n° 2021-835, 2021). Italy requires environmental labeling of all packaging, business-to-business included, comprising material identification codes and, for consumer packaging, disposal information, in force since 1 January 2023 (UL Solutions, 2023). A requirement of wider scope has since been adopted: Regulation (EU) 2025/40 establishes a harmonised material-composition label for the whole single market, with Commission Decision 97/129/EC — the voluntary identification system that member states have been diverging from for nearly three decades — repealed from 12 August 2028 and its content absorbed into the implementing acts (Regulation (EU) 2025/40, recital 74).

Required marks share a structural feature: they are not claims. A mandated material code or sorting pictogram is a legal notice, closer in kind to an ingredient declaration than to an advertisement. This is why consumer-protection frameworks built around voluntary assertions — including the EU's own definition of a "sustainability label", which expressly excludes labels required under Union or national law (Directive (EU) 2024/825, Art. 1(1)) — do not extend to them.

Restricted: marks whose presence can be the offence

The second status inverts the first. Nothing obliges anyone to display the mark; the law instead polices the circumstances of its display.

The longest-standing restriction regime is the US Federal Trade Commission's Green Guides. Under 16 CFR § 260.12, an unqualified "recyclable" claim — which the Guides treat as including symbolic claims — is permissible only "when recycling facilities are available to a substantial majority of consumers or communities where the item is sold", and "the term 'substantial majority', as used in this context, means at least 60 percent" (16 CFR § 260.12). Below that threshold, claims must be qualified in proportion to the extent of the limitation on access. The Guides were first issued in 1992 and last revised in 2012 (Federal Trade Commission, n.d.), and their thresholds are relied on beyond the Guides themselves: How2Recycle's "Widely Recyclable" designation tracks the 60% figure directly (How2Recycle, n.d.).

California converted the restriction from guidance into statute. Public Resources Code § 42355.51, enacted by SB 343 in 2021, prohibits offering for sale, selling, distributing or importing any product or packaging "for which a deceptive or misleading claim about the recyclability of the product or packaging is made", and deems the chasing arrows symbol — or any other recyclability signifier — deceptive unless statewide criteria are met, including collection by recycling programs covering at least 60% of the state's population and sorting into defined streams by facilities serving at least 60% of those programs (Cal. Pub. Res. Code § 42355.51). The statute's subsequent history records the contested character of this status: on 14 July 2026 a federal district court preliminarily enjoined its enforcement, finding the law likely unconstitutionally vague in several provisions and likely to fail intermediate scrutiny under the Central Hudson commercial-speech framework (National Law Review, 2026; Jones Day, 2026). The injunction restrains the state's enforcement while the case proceeds; it does not repeal the statute, and it does not touch the background prohibition on deceptive claims under general consumer-protection law.

The European Union has extended the restriction status the most widely of the jurisdictions examined here. Directive (EU) 2024/825 adds new per se prohibitions to the blacklist of unfair commercial practices in Annex I of Directive 2005/29/EC, applicable without any case-by-case assessment of consumer harm. Point 2a prohibits "displaying a sustainability label that is not based on a certification scheme or not established by public authorities". Point 4a prohibits "making a generic environmental claim for which the trader is not able to demonstrate recognised excellent environmental performance relevant to the claim"; point 4b prohibits claims about an entire product or business that rest on only one aspect of it; and a further point prohibits claims that a product has a neutral, reduced or positive climate impact based on offsetting (Directive (EU) 2024/825, Annex I). The first of these is a restriction directed at marks rather than at claims in words: from the directive's application, a self-created green emblem, such as a logo a retailer designs for its own range, is unlawful in itself, and not merely unlawful when misleading.

Both statuses are expanding, by different routes. The required family is expanding through legislative programmes that mandate particular marks; the restricted family is expanding through per se prohibitions and the enforcement approach behind them.

Certified: marks held together by contract and audit

The third status is private governance. A certification mark is owned by a scheme operator, and the right to display it is granted by licence, conditional on audited conformity with a published standard. The legal machinery is contract and trademark rather than statute, and the remedies it provides are set out in the scheme documents quoted below.

The compostability marks provide one illustration, and the most fully documented of those examined. TÜV Austria's scheme rules for the OK compost HOME mark state that the conformity mark "can be applied to a product only if this product is formally certified by TÜV AUSTRIA", and its logo chart states the prohibition directly: "Nobody is allowed to affix our logo(s) on a product without formal certification by TÜV AUSTRIA", every authorised use must carry the licensee's identification code, and misuse is "systematically prosecuted" (TÜV Austria, 2024a; 2024b). The Seedling logo — frequently misattributed to its issuing certifiers — is "a registered trademark owned by European Bioplastics" and may be displayed only on products certified to EN 13432 by DIN CERTCO or TÜV Austria Belgium (European Bioplastics, n.d.). In North America, the Biodegradable Products Institute prohibits "using the BPI Certification Mark at any time, in any way, without an active certificate and license agreement, active sublicense agreement, or express written consent from BPI" (BPI, n.d.).

Forest certification runs on the same architecture at larger scale. The FSC trademark standard requires that "in order to use these FSC trademarks, the organization shall have a valid FSC trademark licence agreement and hold a valid certificate", with a licence code accompanying every use (FSC, 2021). PEFC states that its logo and initials "are the exclusive property of PEFC and are internationally registered trademarks", usable only with chain-of-custody certification and a trademark usage licence (PEFC, n.d.).

Two features distinguish this family. First, the mark and the certification are separable in principle — a product can be certified and not display the mark, and analysis of eco-labeling has long argued the two should be treated as distinct strategic acts (Delmas and Grant, 2014). Second, this status is acquiring public-law significance: under the EU blacklist described above, third-party certification is the condition on which a voluntary sustainability label remains lawful. Private certification accordingly operates as a condition of lawful display for voluntary green marks in the EU market.

Trademarked: marks that record a transaction

The fourth status is set out last. Some marks on packaging are protected trademarks whose display records a commercial or systemic relationship, and asserts nothing about the product's environmental character. Two examples are given below, together with one mark that did not acquire the status.

The Green Dot is the canonical case. Registered by Der Grüne Punkt – Duales System Deutschland in 1990, with a general licence for Europe outside Germany transferred to PRO EUROPE in 1995 and trademark protection claimed in approximately 170 countries, the symbol indicates, in its owner's words, "that a financial contribution has been paid to a nationally authorised take-back system". PRO EUROPE states the negative outright: it is "a financing symbol and not an environmental symbol" (PRO EUROPE, n.d.). The two arrows assert that a fee has been paid, and assert nothing about recyclability, recycled content, or disposal.

The Tidyman belongs here too. The stooped figure dropping litter into a bin is a registered trade mark of Keep Britain Tidy, which licenses its use in the United Kingdom (Keep Britain Tidy, n.d.). It is an anti-littering behavioural prompt rather than an environmental claim, and it recurs in discussions of symbol confusion on the basis that consumers assimilate it to the recycling family.

The recycling symbol did not acquire that status, for the reason set out below. The Mobius loop was designed in 1970 by Gary Anderson, a student entrant in a design contest sponsored by the Container Corporation of America. The corporation applied to register the design as a trademark, the application was challenged, and the claim was abandoned, leaving the symbol free for anyone to use or modify without royalty (Recycling symbol, 2026). Three features of the chasing arrows' subsequent history — its ubiquity, its ungoverned meaning, and the regulatory efforts to contain it — follow from that abandoned application. A trademarked symbol has an owner with a legal interest in policing its meaning, and the Mobius loop has no proprietor able to exercise that function.

One symbol, four statuses

Traced across jurisdictions, the chasing arrows occupies each of the four statuses in turn, so that the framework can be observed in a single design.

In the 29 US states whose resin-code statutes specify the chasing-arrows form (Plastics Industry Association, 2022), the symbol is required — a manufacturer omitting it from a mandated container violates state law. In California, the same symbol is restricted: under § 42355.51 its display is deemed a deceptive recyclability claim unless statutory criteria are met — a prohibition currently enjoined but not erased (Cal. Pub. Res. Code § 42355.51; National Law Review, 2026). Embedded in ISO 14021, the loop functions as the vehicle for self-declared claims, governed by the standard's conditions: the loop alone is a recyclability claim, and with a percentage figure it becomes a recycled-content claim (ISO, 1999, cl. 7.7.3.3, 7.8.3.2) — not certification in the audited sense, but a rule-bound use that the FTC's 60% threshold and its EU analogues then police. The symbol is, finally, not trademarked, with the consequence that no private owner has policed its meaning in the way PRO EUROPE does for the Green Dot or FSC for its checkmark-and-tree mark.

One printed design therefore carries four legal characters. Identification of the applicable status in a given market determines who is exposed to liability, to what, and on what basis; and research that aggregates all four statuses into a single class of "eco-labels" measures a category that has no counterpart in law.

Three complications

Three qualifications apply to the four-status scheme.

First, the statuses stack. Japan's PET mark is required by statute and its design is fixed by that statute; the Seedling is certified and trademarked; the Green Dot was, for a period before Germany's 2009 amendment of its packaging ordinance, effectively required for participants in the German system while remaining a private trademark throughout. The statuses describe relations between a mark and a body of law, not mutually exclusive boxes.

Second, the restricted status increasingly presupposes the certified status. When Annex I point 2a of the amended Directive 2005/29/EC makes third-party certification the condition of lawfulness for voluntary sustainability labels (Directive (EU) 2024/825), the EU has delegated a gatekeeping function to private certifiers; no substantial published assessment of the accountability arrangements governing that delegation was located in searches conducted for this article.

Third, enforcement capacity differs substantially across the statuses. A required mark is policed by a regulator with inspection powers; a certified mark by a scheme owner with contract remedies; a restricted mark by whoever has standing under consumer law, which, as the California proceedings show, can include private plaintiffs whom an injunction against the state does not bind. The question whether a mark is lawful is therefore accompanied by a second question, that of which body or party would enforce against it; that question is addressed in Who enforces environmental claims, and with what powers?

References

ASTM International (2010) 'Resin identification', Standardization News, November/December. Available at: Open source (Accessed: 17 August 2026).

BPI (Biodegradable Products Institute) (n.d.) Using the BPI mark. Available at: Open source (Accessed: 17 August 2026).

Cal. Pub. Res. Code § 42355.51. Available at: Open source (Accessed: 17 August 2026).

Décret n° 2021-835 du 29 juin 2021 relatif à l'information des consommateurs sur la règle de tri des déchets issus des produits soumis au principe de responsabilité élargie du producteur. Available at: Open source (Accessed: 17 August 2026).

Delmas, M.A. and Grant, L.E. (2014) 'Eco-labeling strategies and price-premium: the wine industry puzzle', Business & Society, 53(1), pp. 6–44. doi:10.1177/0007650310362254.

Directive (EU) 2024/825 of the European Parliament and of the Council of 28 February 2024 amending Directives 2005/29/EC and 2011/83/EU as regards empowering consumers for the green transition, OJ L, 2024/825, 6.3.2024. Available at: Open source (Accessed: 17 August 2026).

European Bioplastics (n.d.) Guidelines for the use of the Seedling logo. Available at: Open source (Accessed: 17 August 2026).

Federal Trade Commission (n.d.) Green Guides. Available at: Open source (Accessed: 17 August 2026).

FSC (Forest Stewardship Council) (2021) FSC-STD-50-001 V2-1: Requirements for use of the FSC trademarks by certificate holders. Available at: Open source (Accessed: 17 August 2026).

How2Recycle (n.d.) How2Recycle labels. Available at: Open source (Accessed: 17 August 2026).

International Organization for Standardization (1999) ISO 14021:1999 Environmental labels and declarations — Self-declared environmental claims (Type II environmental labelling). Geneva: ISO.

Jones Day (2026) Federal court pauses California's SB 343 recyclability labeling law. Available at: Open source (Accessed: 17 August 2026).

Keep Britain Tidy (n.d.) Brand licensing. Available at: Open source (Accessed: 17 August 2026).

METI (Ministry of Economy, Trade and Industry, Japan) (n.d.) Identification marks on containers and packaging [pamphlet]. Available at: Open source (Accessed: 17 August 2026).

National Law Review (2026) California SB 343 enforcement preliminarily enjoined. Available at: Open source (Accessed: 17 August 2026).

PEFC (n.d.) Use the PEFC label. Available at: Open source (Accessed: 17 August 2026).

Plastics Industry Association (2022) State Resin Identification Regulation Survey, May. Available at: Open source (Accessed: 17 August 2026).

PRO EUROPE (n.d.) The Green Dot trademark. Brussels: Packaging Recovery Organisation Europe. Available at: Open source (Accessed: 17 August 2026).

Recycling symbol (2026) Wikipedia. Available at: Open source (Accessed: 17 August 2026).

Regulation (EU) 2025/40 of the European Parliament and of the Council of 19 December 2024 on packaging and packaging waste, OJ L, 2025/40, 22.1.2025. Available at: Open source (Accessed: 17 August 2026).

TÜV Austria (2024a) CS-OK02: Certification scheme, OK compost HOME. Available at: Open source (Accessed: 17 August 2026).

TÜV Austria (2024b) ID-138: Graphical chart for the use of logos. Available at: Open source (Accessed: 17 August 2026).

UL Solutions (2023) Italy environmental labeling requirements for packaging. Available at: Open source (Accessed: 17 August 2026).

16 CFR § 260.12 (Recyclable claims). Available at: Open source (Accessed: 17 August 2026).

Note on sources and verification

The account of the Mobius loop's origin — the 1970 contest, the challenged and abandoned trademark application — rests on the encyclopedia article cited, which in turn derives from a 1999 account in Resource Recycling by Jones and Powell; that primary account was not independently retrieved, and the story should be treated as well-attested secondary history rather than primary record. The Green Dot's 1990 trademark registration date is stated on PRO EUROPE's trademark page as retrieved during research for this article, but one verification pass could not relocate the year on that page; the company's 1990 founding is confirmed by its own site. The federal case number for the SB 343 injunction is reported in legal trade coverage rather than confirmed against the court docket. ISO 14021 clause numbers are cited to the 1999 edition, whose text was publicly retrievable; the current edition may number them differently. The statement that Germany's obligation to display the Green Dot ended with a 2009 amendment of its packaging ordinance is widely documented in industry sources but was not verified against the amending instrument itself.

Last verified: 17 August 2026.