Rotterdam Convention Export Controls
How does the Rotterdam Convention control hazardous chemical exports?
The Rotterdam Convention doesn't ban exports. It controls them in two ways. First, a Party exporting a chemical that it has banned or severely restricted at home must notify the importing Party beforehand. Second, for chemicals listed in Annex III, the Prior Informed Consent (PIC) procedure applies: each importing Party records a decision on future imports, and exporting Parties must make sure their exporters follow it [1][2]. Labelling, safety data sheet and customs-code rules apply alongside both [3].
Approach: I read the Convention text (the Secretariat's 2011 edition, published by Belgium's PIC authority) and checked how the EU, GB and India apply it through the ECHA PIC register, HSE's GB PIC list and India's Annex III import responses. I took the current Annex III count from the Convention's official site (pic.int).
1. Scope
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What it covers (Article 3): banned or severely restricted chemicals, and severely hazardous pesticide formulations [4].
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What it excludes: narcotic drugs and psychotropic substances, radioactive materials, wastes, chemical weapons, pharmaceuticals, food additives and food. Also excluded are small quantities imported for research or analysis, or by an individual for personal use [4].
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Key definitions (Article 2):
- "Banned" means all uses within one or more categories (pesticide, industrial) are prohibited by final regulatory action to protect health or the environment.
- "Severely restricted" means virtually all such uses are prohibited, but certain specific uses remain allowed.
- "Export" excludes mere transit operations.
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Who administers it (Article 4): each Party designates one or more national authorities (DNAs) to carry out the procedures [4].
2. Export notification (Article 12)
This applies to chemicals the exporting Party has banned or severely restricted itself.
- When it is required: the exporting Party "shall provide an export notification" to the importing Party, containing the Annex V information. It is due before the first export after the final regulatory action, then before the first export in each calendar year. The importing Party's DNA may waive it [1].
- Content (Annex V): DNA details for both Parties, expected export date, the chemical and a summary of its hazards, the foreseen use, precautionary measures, the concentration in mixtures, and the importer's name and address [6].
- Acknowledgement: the importing Party acknowledges the first notification. If no acknowledgement arrives within 30 days, the exporting Party must send a second notification [1].
- When the duty ends: all three conditions must be met: the chemical is listed in Annex III, the importing Party has sent its import response, and the Secretariat has distributed that response [1].
3. How a chemical gets into Annex III (Articles 5 to 7)
- A Party that takes final regulatory action notifies the Secretariat within 90 days [7].
- Once the Secretariat holds verified notifications from at least two PIC regions, it sends them to the Chemical Review Committee [7].
- The Committee applies the Annex II criteria. These include whether the action followed a risk evaluation, whether it reduced use or risk, and whether the chemical is still traded internationally. Intentional misuse alone is not a reason to list a chemical [8].
- There is a separate route for pesticide formulations (Article 6). A developing country or an economy in transition that has problems with a severely hazardous pesticide formulation under local conditions of use may propose it for listing [9].
- The Conference of the Parties decides on listing and approves a decision guidance document [10]. It takes Annex III amendments by consensus [11].
Current list: the Convention's site says Annex III holds 57 chemicals: 38 pesticides (including 4 severely hazardous pesticide formulations), 18 industrial chemicals, and 1 chemical in both categories. The latest additions, carbosulfan and ultra-low-volume fenthion formulations (at or above 640 g active ingredient/L), entered into force on 22 October 2025 (pic.int Annex III).
4. The PIC procedure for Annex III chemicals
Importing Party (Article 10):
- It must send a response within nine months of the decision guidance document being dispatched.
- The response is either a final decision (consent, no consent, or consent subject to specified conditions) or an interim response [12][13].
- If it refuses imports or attaches conditions, it must apply the same ban or conditions to imports from any source and to domestic production for domestic use. This is a non-discrimination requirement.
- Every six months, the Secretariat circulates the responses it has received [13].
India's recorded responses show both outcomes:
- Hexachlorobenzene: "No consent to import", final decision [14]
- Endosulfan: no consent, interim decision [15]
- Dieldrin: "Consent to import", final decision [16]
Exporting Party (Article 11):
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It must pass these responses on to those concerned in its jurisdiction.
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It must ensure its exporters comply with each response no later than six months after the Secretariat first circulates it.
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If an importing Party has given no response, or an interim response with no interim decision, the exporting Party must not let the chemical be exported there unless one of these applies:
- the chemical is registered in the importing Party;
- there is evidence it was previously used or imported there and no ban has followed; or
- the exporter has sought and received explicit consent through the importing Party's DNA, which must reply within 60 days.
5. Information that must travel with exports (Article 13)
- Customs code: where the World Customs Organization has assigned a Harmonized System code to an Annex III chemical, Parties must require it on the shipping document.
- Labelling: Parties must require that Annex III chemicals, and chemicals banned or severely restricted at home, are labelled with adequate hazard information when exported.
- Safety data sheet: for chemicals used at work, Parties must require that a safety data sheet in an internationally recognised format is sent to each importer.
- Language: labels and safety data sheets should, as far as practicable, be in the importing Party's language.
Under Article 14, hazard and safety data, the expiry date and summary test results are not treated as confidential [17].
6. How it works in practice: EU, Belgium and GB
EU (PIC Regulation 649/2012): the EU applies the Convention and goes further, according to Belgium's PIC authority:
- The rules cover exports to all countries, not only Parties to the Convention.
- Exporters must notify ECHA through ePIC at least 35 days before the first export each year, and quote the reference number (RIN) on the customs declaration.
- Exports of POPs and of metallic mercury and certain mercury compounds are banned.
The ECHA PIC register shows the different layers. For example, DDT sits in Annex I Part 3 (the PIC procedure) and in Annex V Part 1 (export banned) [19].
Belgium: since 28 May 2025, a Royal Decree has banned Belgian exports outside the EU of substances in its Annex I. Substances in its Annex II are approved only if the intended use is also permitted in the EU [18].
GB: HSE's GB PIC list applies Annex I of the retained ("assimilated") version of Regulation 649/2012. Part 1 lists the chemicals that need an export notification [20].
A limit on the treaty text: the Convention edition in the datasets is from 2011. Its Article 17 only directs the Conference of the Parties to develop non-compliance procedures [21]. It does not show any compliance mechanism adopted after 2011.
How does GB PIC work after Brexit?
Since Brexit, Great Britain (England, Scotland and Wales) runs its own PIC regime. It is based on the assimilated (retained) version of EU Regulation 649/2012, now called the GB PIC Regulation. HSE is the Designated National Authority and enforces it, and it keeps the procedures of the EU original: export notification, prior informed consent, export bans and annual reporting. Northern Ireland is the exception: under the Windsor Framework the EU PIC Regulation still applies there (HSE: GB PIC Regulation).
Approach: I read HSE's GB PIC list as published (current to the 28 August 2026 update) and HSE's official GB PIC pages on the regulation, exporting, importing, annual reporting and list changes. I did not open the underlying EU Exit statutory instruments on legislation.gov.uk.
Legal basis and who runs it
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Legal framework: HSE lists the instruments behind the regime:
- the Health and Safety at Work etc. Act 1974;
- the Biocidal Products and Chemicals (Appointment of Authorities and Enforcement) Regulations 2013, whose Regulation 19(1) implements Regulation 649/2012;
- the two EU Exit regulations: the Chemicals (Health and Safety) and Genetically Modified Organisms (Contained Use) (EU Exit) Regulations 2019 (SI 2019/720) and its 2020 Amendment etc. Regulations (SI 2020/1567).
(HSE)
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Authority: HSE is both the designated authority and the enforcing body, and may work with UK Border Force and HMRC. HSE replaces ECHA's ePIC route: exporters send notifications to HSE by email.
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Northern Ireland: the EU PIC Regulation applies there, and anyone exporting from Northern Ireland to GB must comply with the EU PIC requirements (HSE).
The GB PIC list (five parts)
The list holds the operative Annex I of the assimilated Regulation, plus the export bans under the GB Mercury Regulation [22].
| Part | What it triggers | Entries on the current list |
|---|---|---|
| 1 | Export notification (Article 8), e.g. zineb [22] | 226 |
| 2 | Qualifies for PIC notification (Article 14): the importing country must consent before export (HSE list page), e.g. chrysotile [23] | 119 |
| 3 | The PIC procedure for Rotterdam Annex III chemicals, e.g. asbestos fibres [24] | 55 |
| 4 | Export ban on persistent organic pollutants (POPs), e.g. DDT [25] and PFHxS [26] | 30 |
| 5 | Export ban on mercury and mercury-added products, e.g. metallic mercury at 95% by weight or more [27] and batteries above 0.0005% mercury by weight [28] | 19 |
Keeping up with treaty listings: GB adds new Rotterdam and Stockholm listings by HSE amending its own list. The EU list does not carry over. HSE's latest change notice took effect on 28 August 2026 (HSE change notice):
- Added to Part 3: decaBDE, PFOA, terbufos, carbosulfan and ultra-low-volume fenthion formulations (at or above 640 g active ingredient/L). Carbosulfan and fenthion were taken out of Part 2.
- Added to Part 4: dicofol, pentachlorophenol, PFOA, PFOS, PFHxS, methoxychlor and decaBDE. Part 4 now also states that export is not banned where an exemption or derogation in the POPs Regulation (EU) 2019/1021 applies.
- Added to Part 1: decaBDE and PFOA, because that POPs Regulation severely restricts them for all industrial uses.
- Added to Part 5: new mercury entries 5A, 8A, 9, 10, 10A and 11 to 16. The mercury export ban does not apply to:
- products essential for civil protection or military use;
- products for research, calibration or use as reference standards;
- certain replacement components where no mercury-free alternative exists.
Exporting from GB
All of the following is from HSE's exporting page.
- What needs notifying:
- Part 1 chemicals;
- mixtures containing a Part 1 chemical at concentrations that trigger labelling;
- articles containing unreacted Part 2 or Part 3 chemicals at the specified concentrations.
- Timing: notify HSE at least 35 days before the first export to each importing country in each calendar year. Emergency notifications can bypass the 35 days where there is a public-health or environmental emergency.
- One notification for the EU and NI: a single notification covers exports to all EU member states and supplies to Northern Ireland.
- Reference number (RIN): HSE emails a GB RIN once the export can proceed. It must go on the customs declaration and is valid until 31 December of that year.
- Explicit consent (Parts 2 and 3): HSE seeks the importing country's consent for the exporter. If no reply comes within 60 days, the exporter may propose a waiver, backed by official evidence that the chemical is licensed, registered or authorised in the importing country. Waivers last up to 12 months. They apply to:
- Part 2 chemicals going to OECD countries;
- Part 2 and Part 3 chemicals where no response has been received.
- Packaging, labelling and SDS: exports must be packaged and labelled as if marketed in GB, unless the importing country has its own requirements. An English SDS is mandatory unless sections 4 and 5 of the notification form are completed.
- How to submit: email the GB PIC export notification form and SDS to HSE, one form per email.
- Research exemption: from 21 May 2026, exports for research or analysis of up to 10 kg a year per importing country no longer need a notification or a Special RIN.
Importing into GB and annual reporting
- No import notification: HSE says imports into GB need no PIC notification. Importers still have to comply with REACH, the Biocidal Products Regulation and the Plant Protection Products Regulation as they apply to the chemical (HSE importing).
- Annual reporting (Article 10): exporters and importers must report the exact quantities, in kg, exported from or imported into GB in the previous calendar year. This includes movements to and from Northern Ireland, and only the PIC chemical content of mixtures and articles counts (HSE annual reporting).
- Deadline: 31 March each year.
- How: email using HSE's templates.
- Exemption: research or analysis shipments under 10 kg a year per country.
- Publication: HSE publishes non-confidential results, with annual export and import reports from 2020 to 2024.
Practical difference from the EU regime
A company trading both ways deals with two authorities:
- Exports from GB go through HSE, with a GB RIN, against the GB list.
- Exports from the EU or Northern Ireland go through ECHA under EU 649/2012.
The two lists now diverge, because each is amended separately. The GB list currently runs to 28 August 2026.