National Master Specification

The National Master Specification (NMS) is a reference document containing over 750 master specifications in both English and French. Each section is designed to be edited from the original master to produce a project specific document. It is intended for use by the federal government, other public organizations and the private sector in the preparation of construction and renovation contract documents.

Relevant Policies

Policy on the Use of the National Master Specification (NMS), states that it is the policy of Public Services and Procurement Canada (PSPC) Real Property Branch (RPB) to use the most current version of the NMS in the preparation of specifications for construction, renovation, restoration and repair of federal government architectural, landscape, marine, structural and heavy civil engineering facilities, whether designed in-house, by private consultants or as projects done through the department's Alternate Forms of Delivery (AFD) service provider.


The purpose of this policy is to ensure the use of the NMS by construction specification writers, design professionals, architectural and engineering consultants, construction project managers, and RPB service providers involved in works completed on federal government facilities.

Technical Documentation

The NMS user's guide provides information regarding the NMS system and the procedures to follow in the production of project specifications. The Guide is available from the NMS Secretariat, the NMS publishers or as a downloadable file from the NMS Internet site.


For further information, please visit the Canadian National Master Construction Specifications.

Associated Documents


The National Master Specification user's guide

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