Rules of origin and non-tariff measures often matter more than tariff cuts in trade agreements. Examine with reference to India's recent trade negotiations.
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A tariff cut only promises market access. Rules of origin (RoO) decide which goods qualify for it, and non-tariff measures (NTMs) decide whether those goods actually cross the border. Only one of the seven areas in the India–Mexico PTA Terms of Reference (October 2026) is tariff-based market access [1].
Why rules of origin matter
- They decide who qualifies: Only "originating" goods get the lower duty. If value-addition or paperwork norms are too strict, exporters cannot use the tariff cut.
- They prevent rerouting: Loose RoO let third-country goods pass through a partner. India's CAROTAR 2020 rules under the Customs Act tightened origin checks on FTA imports for this reason [2].
- They matter most with gateway markets: Indian firms see Mexico as a route into the USMCA market [3]. This makes RoO the most sensitive chapter of the Mexico talks.
Why non-tariff measures matter
- SPS and TBT (health rules and technical standards) can block goods even when the duty is zero.
- Both are in the Mexico ToR [1]. In 2020 the India–Mexico High Level Group also flagged agro-products, fisheries and food processing [4]. Together, these suggest the bargaining on farm trade will turn on standards, not tariffs.
- Customs facilitation: Slow clearance and repeated checks can cost exporters more than a small tariff preference saves them.
Evidence from India's recent negotiations
- India–Brazil Joint Declaration (Oct 2025): Expanding the Mercosur PTA must cover "both tariff and non-tariff issues" [5].
- India–Mercosur PTA: It still covers only about 450 items [6]. Coverage that narrow limits the value of any tariff cut.
- India–Chile PTA: Coverage grew from about 474 to 2,829 tariff lines [7]. The gains came from wider coverage and usable rules, not headline rates.
Tariffs still matter, but not alone
- Where normal duties are high, the tariff preference is the first thing exporters look at. Examples are Indian autos and pharma in Mexico [3].
- Even so, the preference helps only if RoO and NTMs let exporters claim it.
Tariff cuts open the door, but rules of origin and non-tariff measures decide whether exporters can walk through it. India should negotiate simple, verifiable RoO, mutual recognition of SPS/TBT standards and digitised customs. It should judge the Mexico PTA by how many exporters actually use it, not by when it is signed. This supports SDG 17.11, which aims to raise developing-country exports.
Sources
- 1India and Mexico launch Negotiations for Preferential Trade Agreement, Sign Terms of Reference, PIB (Ministry of Commerce & Industry), Oct 2026the seven areas in the ToR, including SPS, TBT and RoO
- 2Customs (Administration of Rules of Origin under Trade Agreements) Rules, 2020 (CAROTAR), CBICtighter origin checks to stop misuse of FTA benefits
- 3India–Mexico Bilateral Brief, Ministry of External Affairs (2023)Mexico as a gateway to USMCA; India's main exports are autos and pharma
- 45th Meeting of the India–Mexico Bilateral High Level Group on Trade, Investment and Cooperation, PIB (2020)agro-products, fisheries and food processing flagged
- 5India–Brazil Joint Declaration for Deepening of MERCOSUR–India Trade Agreement, PIB (Oct 2025)expansion to cover tariff and non-tariff issues
- 6India–Mercosur PTA, Department of Commercecoverage limited to about 450 items
- 7Implementation of the expanded India–Chile PTA, Department of Commercecoverage expanded from about 474 to 2,829 tariff lines