The Comoros has no biostimulant category, and no Comorian or regional text in force uses the word.

Since 2024, however, it has a dedicated input law: Loi n° 24-007/AU relative aux intrants agricoles (law on agricultural inputs), adopted by the Assembly on 19 June 2024 and promulgated by Décret n° 24-105/PR of 19 July 2024.

Its Article 3 defines the categories that matter. "Engrais" (fertilisers) are products rich in mineral or organo-mineral elements "nécessaires à la vie des plantes" ("necessary for plant life"). "Régulateurs de croissance" (growth regulators) are substances or preparations that act "sur les mécanismes physiologiques, notamment la différenciation ou l'élongation cellulaire, sans nuire à la plante" ("on physiological mechanisms, in particular cell differentiation or elongation, without harming the plant"), which is close to a biostimulant definition. "Intrants agricoles" (agricultural inputs) expressly include fertilising products and "activateurs et retardateurs de croissance" ("growth activators and retardants"). A biostimulant is therefore an intrant agricole, regulated as an engrais or as a régulateur or activateur de croissance.

A separate phytosanitary (plant quarantine) permit may also apply. Under Article 44 of Loi 17-004/AU on plant protection, anyone importing plants, plant products or "articles réglementés" ("regulated articles") must first obtain an import permit from the national plant protection organisation (ONPV) and submit the goods to inspection, against a fee set by regulation (Art. 45). An article réglementé includes "terre" ("soil") and any material able to carry pests (Art. 3), and the ONPV may restrict biological control agents (Art. 37(e)). Biostimulants of plant, seaweed or microbial origin, composts and products containing soil may therefore need this permit as well. The law names the Agence comorienne pour la protection des végétaux (Comorian Plant Protection Agency) as ONPV (Art. 7), but in practice INRAPE is the IPPC contact point and runs an online permit portal. Importing without a permit carries 3,000,000 to 7,000,000 KMF (that’s about €6,100 to €14,230) and two to six years' imprisonment (Art. 72).

Labelling under Article 34 of Loi 24-007/AU applies to every imported or exported input. The label must show the trade name, the scientific name or chemical formula of the active ingredient "ou nom de la substance principale" ("or name of the main substance"), the date and place of manufacture, the manufacturer's name and address including consumer service contact details, the expiry date, indications of harmfulness, precautions for use, and measures in case of ingestion, inhalation or skin contamination.

Three items are barriers for biostimulants. An expiry date is mandatory even for stable products. Harmfulness and first aid statements are required even for non-hazardous products. The active ingredient must be named, although the "substance principale" ("main substance") option allows a blend to be identified by its main component, such as the seaweed species, without full formula disclosure. No label language is set; French is the safe choice. Importers and distributors are responsible for destroying or recycling packaging and expired products (Art. 37).

No text sets a fee or deadline for the répertoire, the certificate or the import authorisation. The répertoire is updated at least quarterly (Art. 12) and certificates are issued yearly after a training session (Art. 13), so three to six months to a first shipment is a realistic estimate, not a statutory figure. Breaches of Title III, Chapters 2 to 4, which cover the certificate, labelling and import authorisation, carry 250,000 to 2,000,000 KMF and/or three months to one year's imprisonment (Art. 48). Obstructing inspectors carries 100,000 to 500,000 KMF and/or one to three months (Art. 49). The court may confiscate the inputs and vehicles used (Art. 50), and penalties double for a repeat offence within twelve months (Art. 51).

No regional regime registers fertilisers or biostimulants for the Comoros to our understanding. SADC ministers approved a Draft Memorandum of Understanding on Harmonisation of Fertiliser Regulatory Frameworks on 29 May 2026; it is not yet in force and does not mention biostimulants. COMESA has no harmonised fertiliser or biostimulant regulation; its harmonisation work covers seeds. The Indian Ocean Commission and the regional plant protection network share information but issue no authorisations.

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The sciBASICS Team.