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Section 2— The Contractor's Main Responsibilities

Clause 29.1

Non-Disclosure of Information

Purpose

The Parties do not disclose information obtained in connection with the works except when necessary to carry out their duties under the contract.

Practical Application

Confidentiality applies to all project information including design, pricing, methods, and commercial data. Disclosure is only permitted to the extent needed to perform contractual obligations.

Common Pitfalls

The exception for 'necessary' disclosure is narrow. Sharing information with related companies, advisors, or insurers without a direct contractual need may breach this clause.

📖 This summary is for reference. For the full, authoritative NEC4 contract text — including all amendments, guidance notes, and flow charts — visit the official NEC website.

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⚠️ This commentary is for reference only. Always refer to the full NEC4 contract text and seek professional legal or contractual advice for your specific project.