---
kind: "section"
citation: "19 U.S.C. § 340"
title: "19"
title_heading: "Customs Duties"
number: "340"
heading: "Consuls to exact proof of invoice"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/19/340"
units:
  - "Chapter 3 — The Tariff and Related Provisions"
  - "Subtitle IV — Customs Administration"
  - "Part 3 — ascertainment, collection, and recovery of duties"
---

# §340. Consuls to exact proof of invoice


All consular officers are authorized to require, before certifying any invoice, satisfactory evidence, either by the oath of the [person](/usc/19/1683.md?p=8) presenting such invoices or otherwise, that such invoices are correct and true. In the exercise of the discretion hereby given, the consular officers shall be governed by such general or special regulations or instructions as may from time to time be established or given by the Secretary of State.


## Source credit

(R.S. § 2862.)

## Notes

### Editorial Notes

### Codification

R.S. § 2862 derived from act Mar. 3, 1865, ch. 111, 13 Stat. 532.