Key Sanitary and Phyto-sanitary Measures for Safe Food and Agriculture Products

Every time a shipment of fresh produce, meat, or grain crosses an international border, it passes through an invisible but powerful layer of protection – Sanitary and Phytosanitary (SPS) measures. These are the rules, standards, and procedures that governments use to keep harmful pests, diseases, and contaminants out of their food supply and agricultural systems. Without them, a single infected consignment could spread disease across continents. The WTO’s SPS Agreement, which entered into force on 1 January 1995, provides the overarching international framework for how these measures should be developed and applied – ensuring they protect human, animal, and plant health without becoming disguised barriers to trade.

What are SPS measures? 🔗

According to the United States Trade Representative, SPS measures include all relevant regulations, requirements, and procedures used to ensure the safety of agricultural products for people, plants, and animals. This covers processes and production methods; testing, inspection, certification, and approval procedures; quarantine requirements for transporting animals or plants; risk assessment methods; and packaging and labelling requirements related to food safety.

In short, SPS measures are not just about what a product contains – they also govern where it was produced, how it was handled, and whether it was treated before export. Practical examples include meat processing standards designed to reduce pathogens, residue limits for pesticides in foods, quarantine inspection procedures, and requirements for products to originate from disease-free areas.

The core objectives of SPS measures 🔗

The basic aim of the SPS Agreement is to maintain each government’s right to decide its own level of health protection, while preventing those rights from being misused for protectionist purposes or creating unnecessary barriers to international trade. Three goals sit at the center of this framework: protecting human health from foodborne risks, protecting animal health from disease, and protecting plant health from pests and pathogens that can devastate crops.

Critically, all SPS measures must be grounded in science. Under Article 2 of the SPS Agreement, measures must be based on scientific principles and cannot be maintained without sufficient scientific evidence. They also must not arbitrarily or unjustifiably discriminate between countries where identical or similar conditions exist.

Key types of SPS measures 🔗

Disease-free area requirements 🔗

One of the most fundamental SPS requirements is that certain products must originate from regions officially recognized as free from specific diseases or pests. The SPS Agreement explicitly recognizes the existence of pest- or disease-free areas as a factor in risk assessment, and both the World Organisation for Animal Health (WOAH) and the International Plant Protection Convention (IPPC) have developed standards for establishing these pest-free areas (PFAs). A country or region achieves PFA status through rigorous surveillance, monitoring, and documentation – and that status then opens export markets that would otherwise be closed.

For example, a country affected by foot-and-mouth disease cannot export fresh beef to most markets. But a disease-free zone within that country – if officially recognized – may still be permitted to trade. This geographic approach makes SPS rules more targeted and less disruptive to trade than outright blanket bans.

Product inspections and certification 🔗

Inspection is a direct line of defense at the border. SPS measures include testing, inspection, certification, and approval procedures as core components. Inspectors verify that products meet the safety standards of the importing country – checking documentation, conducting visual assessments, and in some cases sending samples to laboratories for analysis.

Certification provides a formal, verifiable record that a product has been produced, processed, and handled in accordance with SPS requirements. Phytosanitary certificates, for instance, are issued by national plant protection organizations and confirm that exported plant materials comply with the health requirements of the destination country. These certificates are issued as per IPPC requirements and are checked at designated entry points in the importing country.

Quarantine treatments and processing requirements 🔗

When products carry a potential biological risk, importing countries can require specific treatments before entry. Quarantine requirements for transporting animals or plants are a recognized part of the SPS framework. Treatment methods can include heat treatment, cold treatment, irradiation, fumigation, or chemical disinfestation – all aimed at eliminating pests or pathogens that could otherwise establish themselves in a new territory.

Beyond quarantine, some SPS measures specify processing and production methods (PPMs) – requirements about how a product must be produced or processed before it reaches the consumer. A requirement that poultry must be processed at a minimum internal temperature, or that certain fruits must undergo cold treatment before export, are both examples of PPM-based SPS requirements. These measures look beyond the end product to address risks that arise earlier in the supply chain.

Maximum residue limits for pesticides 🔗

Pesticides are essential to modern crop production, but their residues in food present a food safety risk if levels are excessive. Maximum Residue Limits (MRLs) are the legally permitted upper limits for pesticide residues in or on food and feed. As defined by the Codex Alimentarius, an MRL is the highest level of pesticide residue legally tolerated in or on food or feed when pesticides are applied in accordance with Good Agricultural Practice.

The Codex Alimentarius Commission has established over 4,300 MRLs covering nearly 200 pesticides – a comprehensive set of international benchmarks that countries can adopt for their national standards. The SPS Agreement explicitly names the FAO/WHO Codex Alimentarius Commission as the reference organization for food safety standards, including MRLs. Countries that base their national MRL requirements on Codex standards are unlikely to face legal challenges in WTO trade disputes. However, countries may set stricter limits if they have scientific justification showing that international standards do not achieve their required level of protection.

The “three sisters”: international standard-setting bodies 🔗

SPS measures do not operate in isolation – they are anchored to internationally agreed standards developed by three organizations specifically named in the SPS Agreement and widely referred to as the “Three Sisters”:

The FAO/WHO Codex Alimentarius Commission sets food safety standards, including MRLs for pesticides, permitted food additives, and microbiological standards. The World Organisation for Animal Health (WOAH), formerly the OIE, develops standards for animal health and zoonotic diseases – illnesses transmissible between animals and humans. The International Plant Protection Convention (IPPC), administered by the FAO, develops International Standards for Phytosanitary Measures (ISPMs) to prevent the spread of plant pests through international trade. These three organizations play a key role in guiding the development and implementation of SPS measures globally.

When countries base their national measures on these international standards, those measures are generally presumed to comply with the SPS Agreement – reducing the risk of trade disputes and providing assurance to trading partners that safety requirements are scientifically grounded.

Scientific risk assessment: the backbone of SPS decisions 🔗

A defining feature of SPS measures is that they must be justified by risk assessment – a systematic evaluation of the likelihood that a particular pest, disease, or contaminant will enter a country and the potential consequences if it does. In conducting risk assessments, countries are required to take into account available scientific evidence, relevant inspection and testing methods, the prevalence of specific diseases or pests, the existence of disease-free areas, and relevant ecological and environmental conditions.

This scientific foundation is what distinguishes legitimate SPS measures from protectionist trade barriers. A country cannot simply ban a product because its domestic producers fear competition – it must demonstrate a genuine, evidence-based risk. Measures should be based as far as possible on the analysis and assessment of objective and accurate scientific data. Where scientific evidence is insufficient to complete a full risk assessment, the precautionary principle – reflected in Article 5.7 of the SPS Agreement – allows countries to adopt provisional measures, pending the gathering of additional information.

Transparency and notification obligations 🔗

Transparency is a core pillar of the SPS system. Under Article 7 of the SPS Agreement, WTO members must notify changes to their SPS measures and provide information about existing ones. This notification system gives trading partners the opportunity to comment on proposed regulations before they come into effect – protecting exporters from being caught off-guard by sudden new requirements.

Countries are also required to maintain national enquiry points – designated offices where trading partners can request information about a country’s SPS requirements. These transparency provisions ensure that SPS measures do not function as unnecessary trade barriers by keeping all stakeholders informed and giving them a structured channel to raise concerns before they escalate into disputes.

SPS measures and developing countries 🔗

Meeting SPS requirements is disproportionately challenging for developing countries. Conducting rigorous risk assessments, maintaining accredited testing laboratories, training inspection staff, and staying current with evolving international standards all require significant investment. Compliance with SPS rules can impose excessive costs on exporters and importers and limit market access, particularly for smaller economies.

To address this, the SPS Agreement includes provisions for technical assistance. The Standards and Trade Development Facility (STDF) – a joint initiative of the WTO, WHO, World Bank, WOAH, and FAO – was established specifically to help developing countries build their capacity to meet SPS standards. Many developing countries have also adopted Codex, WOAH, and IPPC standards directly as the basis for their national requirements, which avoids duplicating complex technical work already done at the international level.

Why SPS measures matter beyond compliance 🔗

It is easy to view SPS measures purely as regulatory hurdles – paperwork, inspections, and costs. But their significance extends well beyond compliance. A single outbreak of a plant pest or animal disease can devastate an entire agricultural sector, triggering export bans that last years. SPS measures are designed to protect animals and plants from diseases and pests, and to protect humans from animal- and plant-borne diseases and foodborne risks – they are, ultimately, public health and biosecurity tools that benefit producers, consumers, and trading partners alike.

For food businesses and agricultural exporters, proactively aligning with SPS standards – rather than scrambling to meet them at the border – is increasingly a competitive advantage. It builds trust with importing country authorities, reduces the risk of costly rejections and detentions, and opens access to regulated, high-value markets that demand documented proof of safety.

What do you think? As international trade in food and agricultural products grows, do you think the current SPS framework – built on scientific risk assessment and international standards – is equipped to handle emerging threats like antimicrobial resistance or climate-driven pest migrations? And how can developing countries be better supported to close the gap in SPS capacity without being shut out of global markets?

References

1. https://www.wto.org/english/tratop_e/sps_e/spsund_e.htm
2. https://ustr.gov/issue-areas/agriculture/sanitary-and-phytosanitary-measures-and-technical-barriers-trade
3. https://www.everycrsreport.com/reports/R43450.html
4. https://www.wto.org/english/tratop_e/sps_e/spsagr_e.htm
5. https://foodsafety.institute/food-laws-standards/implementing-sps-measures-india-agencies-roles/
6. https://www.fao.org/fao-who-codexalimentarius/codex-texts/maximum-residue-limits/en/
7. https://www.fao.org/fao-who-codexalimentarius/thematic-areas/pesticides/en/
8. https://foodsafety.institute/food-laws-standards/codex-residue-limits-tbt-agreement/
9. https://www.wto.org/english/tratop_e/sps_e/sps_e.htm
10. https://link.springer.com/article/10.1007/s44279-025-00301-9