On 16 October 2026, FSSAI published in the Gazette a draft amendment proposing maximum residue limits for two pesticides in tea: acetamiprid at 20 mg/kg (20 ppm) and imidacloprid at 50 mg/kg (50 ppm).
Read on its own, that is a technical notification. Read against what preceded it, it closes a regulatory gap that had put Indian tea growers in an impossible position — one where a chemical was lawful to use on the crop and yet left the crop unsellable under food law.
The gap, and how it opened
Two different authorities govern a pesticide in India, under two different Acts and two different ministries.
The Central Insecticides Board and Registration Committee (CIB&RC), under the Ministry of Agriculture, operates under the Insecticides Act, 1968. It registers a pesticide and approves its label claim — the specific crops it may be used on, at what dose and at what interval before harvest.
FSSAI, under the Ministry of Health and Family Welfare, operates under the Food Safety and Standards Act, 2006. It fixes the maximum residue limit — how much of that chemical may lawfully remain in or on the food when it is sold.
These are different questions and it is reasonable that different bodies answer them. The problem arises when the two processes fall out of step.
For acetamiprid and imidacloprid on tea, the sequence reported by the industry ran like this. The CIB&RC approved the label expansion for tea in January, on the strength of supervised field trials and residue data generated by the Tea Research Association. The Tea Board then incorporated both molecules into its Plant Protection Code in April. A grower reading those two documents would conclude, correctly, that using these chemicals on tea was approved practice.
But no MRL had been notified under food law. And where no limit exists, there is no lawful quantity — so any detectable residue becomes a compliance failure. The Confederation of Indian Small Tea Growers Associations wrote to the Union Health Minister seeking early notification, arguing that the absence of notified MRLs had "created uncertainty in their use, exposing growers to the risk of crop losses and reduced productivity." Assam industry bodies put the scale of it plainly, saying that more than 90% of the compliance issues of Assam tea would be resolved once limits for these two molecules were published.
That is the situation the 16 October draft addresses. Legal to spray, under a code the Tea Board itself wrote; and impossible to sell without failing a residue test.
What an MRL actually is
This is the concept most often misunderstood, and the misunderstanding is worth correcting precisely because it sounds plausible.
A maximum residue limit is not a toxicity threshold. It is not the level at which a chemical becomes harmful. It is the highest residue legally permitted when the pesticide has been used according to Good Agricultural Practice — the approved dose, the approved frequency, and the approved interval between the last application and harvest.
MRLs are derived from supervised residue trials: the pesticide is applied as the label directs, the crop is sampled, and the residue is measured. The resulting figure is then checked for safety against toxicological reference values such as the Acceptable Daily Intake, so that even the upper end of realistic consumption stays well within safe bounds.
Two consequences follow, and both are examinable.
An MRL is primarily a compliance instrument. A residue above the MRL signals that the chemical was not used as approved — too much, too often, or too close to harvest. It does not by itself establish that the food is dangerous.
MRLs differ legitimately between countries. Different agricultural conditions, pest pressures and consumption patterns produce different limits for the same chemical on the same crop. That is why India's proposed 20 ppm for acetamiprid in tea can sit below Japan's 30 ppm and the United States' 50 ppm without any of the three being wrong.
Codex, and why it is the reference point
The Codex Alimentarius is the international food standards body established jointly by the Food and Agriculture Organization and the World Health Organization. It issues standards, guidelines and codes of practice, including Codex MRLs for pesticide residues.
Codex standards are not binding treaties. Their force comes from the WTO Agreement on the Application of Sanitary and Phytosanitary Measures, under which a member adopting a measure that conforms to a Codex standard is presumed to be acting consistently with its obligations. A country may set a stricter limit, but then it carries the burden of scientific justification.
This is why the Ministry's note that the imidacloprid limit was formulated with reference to Codex matters commercially as much as scientifically. India is among the world's largest tea producers and a significant exporter, and tea is tested at destination. A residue standard anchored to Codex is a standard that travels.
It is the same structural logic that runs through India's other trade-facing decisions — whether in replacing export subsidies with WTO-compatible tax remission or in building visibility over the licensing that governs controlled exports. International compatibility is not a courtesy; it is what keeps consignments moving.
The wider pesticide picture
Two further figures from the release deserve to be carried, with the right caveats.
India's average pesticide use is below 0.5 kg per hectare, against a global average of 2.38 kg per hectare. This is a genuine and frequently quoted contrast. The honest qualification is that a national average conceals enormous variation: use is intense in some crops and regions — cotton, vegetables, and tea among them — and negligible across large areas of rainfed cereal cultivation. A low national average does not mean low exposure for a particular crop or a particular farming community.
Thirteen pesticides with higher toxicity have been delisted in the earlier regulatory review, with the Food Safety and Standards (Contaminants, Toxins and Residues) Amendment Regulations, 2024 representing a substantial revision of residue standards. Withdrawal of the more hazardous molecules and the fixing of limits for less hazardous replacements are two halves of the same policy.
A fair article should also record the counterpoint. Acetamiprid and imidacloprid are neonicotinoids — systemic insecticides that are taken up by the plant and act on the insect nervous system. Several members of this family have been restricted in the European Union over concerns about effects on pollinators. Setting workable limits for their use in India is a defensible regulatory decision; it is not a finding that the chemistry is free of environmental concern, and an answer that acknowledges both reads as better informed than one that celebrates the notification.
Why this is an economics story
It is tempting to file a residue notification under food safety alone. The sharper reading is that a missing number in one regulator's schedule was costing growers a market.
Tea is produced in India at two very different scales: large estates with their own agronomists and compliance systems, and small growers who now account for a substantial share of production and who have neither. A compliance regime that is merely confusing is manageable for the first group and ruinous for the second. The small growers' associations wrote the letters precisely because the cost of regulatory uncertainty falls hardest where there is no compliance department to absorb it.
The governance lesson generalises well beyond tea, and it is the proposition worth taking into an answer: where two regulators govern one product, the binding constraint is the slower of the two. Approval to use a chemical is worthless if the residue it leaves has no lawful limit.
🔑 Revision block
- The notification: draft Food Safety and Standards (Contaminants, Toxins and Residues) Amendment Regulations, 2026, published in the Gazette on 16 October 2026, proposing MRLs in tea of 20 mg/kg (20 ppm) for acetamiprid and 50 mg/kg (50 ppm) for imidacloprid. Stakeholder comments invited.
- International comparison: India's proposed acetamiprid limit of 20 ppm is below Japan's 30 ppm and the USA's 50 ppm; the imidacloprid limit was formulated with reference to Codex standards.
- Two regulators: CIB&RC under the Ministry of Agriculture (Insecticides Act, 1968) registers pesticides and approves label claims; FSSAI under the Ministry of Health and Family Welfare (FSS Act, 2006) fixes residue limits in food.
- The gap: CIB&RC approved the label expansion for tea in January, the Tea Board added both molecules to its Plant Protection Code in April, but no MRL existed under food law — making use lawful and residues non-compliant.
- MRL definition: the highest residue legally permitted when the pesticide is used according to Good Agricultural Practice, derived from supervised residue trials and checked against the Acceptable Daily Intake. It is a compliance benchmark, not a toxicity threshold.
- Codex Alimentarius: joint FAO-WHO body; its standards gain force through the WTO SPS Agreement, under which conformity creates a presumption of consistency with obligations.
- Context figures: India's pesticide use under 0.5 kg/hectare against a global average of 2.38 kg/hectare; 13 pesticides of higher toxicity delisted in the earlier review; the 2024 amendment regulations revised MRLs substantially.
- Chemistry note: both molecules are neonicotinoids, several of which are restricted in the EU over pollinator concerns.
🎯 Practice MCQs
Q1. A Maximum Residue Limit (MRL) is best defined as: (a) the dose at which a pesticide becomes acutely toxic to humans (b) the quantity of pesticide a farmer may purchase in a season (c) the highest residue legally permitted when the pesticide is used according to Good Agricultural Practice (d) the residue level above which a crop must be destroyed
→ (c) It is a compliance benchmark derived from supervised trials, not a toxicity threshold.
Q2. Which body registers pesticides and approves their label claims in India? (a) Central Insecticides Board and Registration Committee (b) Food Safety and Standards Authority of India (c) Central Drugs Standard Control Organisation (d) Bureau of Indian Standards
→ (a) The CIB&RC functions under the Ministry of Agriculture, under the Insecticides Act, 1968.
Q3. Maximum residue limits for pesticides in food in India are fixed under which law? (a) the Insecticides Act, 1968 (b) the Food Safety and Standards Act, 2006 (c) the Environment (Protection) Act, 1986 (d) the Essential Commodities Act, 1955
→ (b) FSSAI fixes MRLs under the FSS Act, through the Contaminants, Toxins and Residues Regulations.
Q4. The Codex Alimentarius is established jointly by: (a) the WTO and UNCTAD (b) UNEP and the WHO (c) the FAO and the WHO (d) the World Bank and the FAO
→ (c) It is the joint FAO-WHO food standards body, and its standards acquire legal weight through the WTO SPS Agreement.
Q5. India's proposed acetamiprid limit in tea, compared with Japan and the United States, is: (a) lower than both (b) higher than both (c) identical to both (d) lower than Japan but higher than the USA
→ (a) India proposes 20 ppm, against 30 ppm in Japan and 50 ppm in the USA.
Q6. Acetamiprid and imidacloprid belong to which class of insecticides? (a) organochlorines (b) organophosphates (c) pyrethroids (d) neonicotinoids
→ (d) Both are neonicotinoids, systemic insecticides acting on the insect nervous system.
Q7. Under the WTO SPS Agreement, a member adopting a measure conforming to a Codex standard: (a) must still obtain prior approval from the WTO (b) is barred from adopting any stricter limit (c) is presumed to be acting consistently with its obligations (d) must compensate exporters affected by the measure
→ (c) Conformity creates a presumption of consistency; a stricter standard is permitted but requires scientific justification.
Q8. The practical problem faced by tea growers before this draft notification was that: (a) the pesticides were approved for use on tea but had no notified residue limit in food law (b) the pesticides had been banned entirely by the CIB&RC (c) FSSAI had set limits lower than any grower could meet (d) the Tea Board had prohibited all chemical pest control
→ (a) Use was approved through the label expansion and the Plant Protection Code, but with no MRL any detectable residue was a compliance failure.
Q9. India's average pesticide use per hectare, as cited in the release, is approximately: (a) 2.38 kg (b) under 0.5 kg (c) 1.2 kg (d) 5 kg
→ (b) Under 0.5 kg per hectare against a global average of 2.38 kg per hectare — though national averages conceal wide variation by crop and region.
Q10. Which statement about MRLs across countries is correct? (a) All WTO members must adopt identical MRLs (b) MRLs are set by the exporting country alone (c) MRLs may not differ from Codex standards under any circumstances (d) Different countries may lawfully set different MRLs for the same pesticide on the same crop
→ (d) Agricultural conditions, pest pressure and consumption patterns differ, so limits legitimately differ.
📋 How this gets asked (PYQ pattern)
Food safety regulation has become a steady CDS General Knowledge theme, and this notification supplies the three forms it usually takes.
The first is the institution-and-statute pairing. FSSAI with the Food Safety and Standards Act, 2006, and the CIB&RC with the Insecticides Act, 1968. The paper likes pairings where the intuitive answer is wrong, and most candidates assume a single pesticide regulator.
The second is the international-body question. Codex Alimentarius as a joint FAO-WHO body is asked directly, and the related trap is to attribute it to the WTO. The WTO connection is real but indirect — through the SPS Agreement, which gives Codex standards their legal leverage.
The third is the definition question, and MRL is a good one because the wrong answer sounds right. An MRL is a Good Agricultural Practice compliance benchmark, not a safety threshold, and a statement that calls it "the level at which the residue becomes harmful" is false.
A fourth form worth preparing is the comparative-number question — India at 20 ppm against Japan at 30 and the USA at 50. Three-country comparisons are easy to set and to misremember.
For a written answer on agricultural trade and regulation, the proposition that distinguishes a script is the one about sequencing. When one regulator approves a chemical for a crop and another has not yet set a residue limit for it, the approval is worthless: the grower may lawfully spray and cannot lawfully sell. Add that the cost of such regulatory gaps falls hardest on small growers who have no compliance capacity, and that a limit anchored to Codex is what allows a consignment to clear testing abroad, and the answer has made an argument about governance rather than reciting a notification.
Preparing for CDS/OTA? Regulation questions reward knowing which body acts under which Act — build that table once and it pays across economy, polity and environment. Start with our CDS/OTA study material and the economy section, follow the daily CDS current affairs, and prepare with our faculty in the upcoming Cavalier courses in Delhi.
✍️ Written by Aditya Tiwari — Economy & Trade faculty at The Cavalier. Reviewed by the Cavalier Faculty Desk.