Section 13 — Consequential amendment of the Customs Act, 1962

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Made the consequential substitution in Customs Act Sections 12 and 14 from the Indian Tariff Act, 1934 to the Customs Tariff Act, 1975. Its legislative work was transitional and is now reflected in the current Customs Act text.

Statutory position and legal effect

For Section 13, the legal answer should be built in layers. First identify what the section itself does; second identify the Schedule, notification, rule or investigation record that activates it for the goods and date; third reconcile that result with the Customs Act assessment machinery. This avoids a frequent customs error: treating a statutory power, a tariff rate and an effective rate as if they were the same thing.

The material date matters because tariff lines, exemptions, origin rules and trade-remedy measures change independently. A defensible file should therefore retain the exact tariff extract and notification version used in the assessment. Where this page is marked historical or transitional, the section should be cited only for a period when it legally operated or for explaining the transition to the current framework.

From an evidence perspective, the strongest working paper is not a screenshot of a duty calculator. It is a reconciliation showing the declared tariff item, legal notes considered, statutory rate, effective notification serial, preference/origin basis, additional levies, trade-remedy measure if any, and the arithmetic from customs value to final duty. Section 13 should occupy its correct place in that chain.

Official text control: use the India Code/Gazette version of Section 13 and the Schedule or delegated instrument applicable on the transaction date. This page intentionally explains the law rather than reproducing a long unofficial bare-act extract.

Applicability, rights, obligations and decision workflow

1. Step 1. Use the page for legislative history and old citations.
2. Step 2. For current levy, cite Customs Act Section 12 plus Tariff Act Section 2.
3. Step 3. For valuation, use current Customs Act Section 14 and Valuation Rules.
4. Step 4. Do not calculate any duty under Section 13 itself.
5. Step 5. Keep historical cross-references intelligible in older judgments.

The page is retained for statutory completeness and legislative history. A current assessment should cite the current Customs Act and Tariff Act provisions rather than treating Section 13 as an independent charging rule.

Thresholds, provisos, timelines and interaction with other law

The section must be read with the Customs Act, the tariff Schedules and any subordinate instrument that gives it transaction-level effect. Where the provision contains a power rather than a self-executing charge, no duty or obligation should be assumed without locating the notification, rule, agreement or investigation determination that activates the power. Historical provisions require the same material-date discipline.

Rate changes, classification changes and trade-remedy measures are different legal events. The file should say exactly which one occurred and should not infer the enabling provision merely from the fact that the landed duty increased or decreased.

Rules, notifications, Finance Acts and operational instruments

Case law — provision-specific research matrix

No direct reported authority is forced into this page. The provision is primarily statutory/administrative; case law should be added only when a decision genuinely interprets this provision or its operative mechanism.

Worked example

A 1970s judgment refers to the statutory switch from the Indian Tariff Act to the Customs Tariff Act. Section 13 explains the amendment, but a 2026 bill of entry is assessed under the current Customs Act/Tariff Act text.

Professional result: document the legal route before doing the arithmetic. A short computation that identifies the correct provision and current notification is stronger than a long calculation based on an obsolete tariff or historical measure.

Evidence and compliance checklist

• Material date and customs event.
• Exact 8-digit tariff item and candidate headings considered.
• Relevant Section/Chapter/Subheading Notes and GRI reasoning.
• Statutory Schedule rate and effective exemption/preference rate.
• Current notification/rule/Finance Act extract with effective date.
• Section 3 additional levies and separate trade-remedy duty, if any.
• Origin/FTA support where a preferential rate is claimed.
• Assessment/order and calculation reconciliation retained with source links.

Common mistakes and professional traps

• Calling Section 13 a charging section
• Treating the 1976 consequential amendment as a current rate rule
• Using an old manual or judgment for a current tariff rate without checking later amendments.
• Quoting a four-digit HSN heading when the legal outcome turns on an eight-digit tariff item or a national note.

Related provisions and research routes

• Customs Act section 12 — charging provision
• Customs Act section 14 — valuation
• First Schedule / General Rules for Interpretation
• CBIC effective-rate and exemption notifications

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