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JT/T 1256-2025Specifications for compilation technology of port and fairway charts (English PDF)

港口航道图编绘技术规定

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Issued by

Ministry of Transport

Level / Type

National · Recommended

Issue date

August 11, 2025

Implementation date

December 1, 2025

Scope

JT/T 1256-2025 is the English-translated version of 港口航道图编绘技术规定.

JT/T 1256-2025 — This standard specifies the general requirements, mathematical basis, use of cartographic data, representation of cartographic elements, printing and updating requirements for port navigation chart compilation.

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Document preview — JT/T 1256-2025

National Standard of the People's Republic of China

Replacing: JT/T 1256-2019

Issued by: Ministry of Transport

What this standard covers1
Document data2

What this standard covers

This standard specifies the general requirements, mathematical basis, use of cartographic data, representation of cartographic elements, printing and updating requirements for port navigation chart compilation. This standard applies to the compilation of coastal port navigation charts at various scales.

Document data

Estimated length of the Chinese original: 40,478 words.

Supersedes the earlier edition JT/T 1256-2019.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 27 pages — is available in the English PDF.

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