COOMET publications are divided into four categories:

• documents;
• recommendations;
• programs;
• information materials.

A COOMET Document is a publication of organisational and methodological and informative  nature, developed and approved within COOMET, reflecting procedural issues and fundamental issues of cooperation, and providing guidance to national metrology institutions which are COOMET members and to COOMET structural bodies in their activities.

A COOMET Recommendation is a publication of organisational and methodological or technical nature, developed and approved within COOMET, used by COOMET structural bodies and/or national metrology institutions of COOMET member countries in cooperation within COOMET or in metrological practice in their countries.

The recommendations describing the procedure for interaction of national metrology institutions of COOMET member-countries and/or of CSB in carrying out works in the basic fields, provided for in the MoU, are also regarded as COOMET recommendations used in cooperation within COOMET.

COOMET Recommendations used by national metrology institutions of COOMET member-countries in their metrological practice, can apply to:

• terms, definitions, norms and requirements in the field of metrology, quality systems;
• verification charts;
• measurement techniques;
• measuring instrument testing techniques;
• measuring instrument verification techniques;
• measuring instrument calibration techniques;
• comparison techniques;
• methodological guidance on the application of requirements of documents of international organizations (e.g. International Organization of Legal Metrology (OIML) or other organizations) etc.).

A COOMET Program is a publication, developed and approved within COOMET, reflecting the issues of cooperation policy and intended plans of activities of the whole organization or its structural body for a short, medium or long term. 

COOMET programs also include concepts, strategies, policies, development plans and other similar documents

A COOMET Informational Material is a material of informative nature, developed and approved within COOMET and used by national metrology institutions of COOMET member-countries in cooperation within COOMET or in metrological  practice in their countries.

Analytical reviews, registers, reference information etc. are regarded as COOMET informational materials