TR CU 031

Technical Regulations of the Customs Union 031/2012 consist of safety requirements for agricultural and forestry tractors and trailers. The purpose of its creation was to protect consumers from low-quality equipment and to ensure the free movement of products within the EAEU member countries.


The technical regulation covers the following means on the territory of the Customs Union:

  • New and imported wheeled and tracked agricultural and forestry tractors, trailers with a maximum design speed of at least 6 km/h
  • New and imported components of tractors and trailers that affect their safety


  • Issued into circulation before the commencement of TR CU 031/2012
  • Single copies made as a personal order or a creative project
  • Used or repaired means


All vehicles fall into three categories:

  • T – wheeled tractors
  • C – crawler tractors
  • R – trailers

Depending on specific indicators and characteristics, they are divided into subcategories:

Category T differs in five subcategories of wheeled tractors with a maximum design speed from no more than 40 km/h to over 40 km/h, differing in weight, dimensions, track size, ground clearance, chassis height, and other parameters.

Category C also consists of five subcategories, defined by analogy with wheeled tractors.

Category R consists of four subcategories of trailers with a permissible mass range from 1,500 kg to 21,000 kg.

The machinery consists of types made by one manufacturer determined by a set of similar design parameters indicated in the technical descriptions of specific products.

Tractor and trailer components include speedometers, speed limiters, windows, seats, headlights, tires, mirrors, and more.


Compliance with the safety requirements of the machinery covered by the technical regulations must be confirmed by a mandatory certificate, which is drawn up based on documents provided by the manufacturer or supplier:

  • A detailed description of equipment and manual for its operation
  • Technical and construction documentation (drawings, schemes)
  • Contractual and accompanying documentation
  • Evidential base with recorded test results

Only organizations with appropriate accreditation can provide a certification process according to one of the standard schemes 1c, 3c, or 4c. The serial production certificate remains valid for up to 5 years. Machinery manufactured in units and batches is unlimited.


Tractors, trailers, and components circulated within the EAEU must have a safe design and comply with the technical regulation requirements. It must also meet the UNECE standards and Regulations, which coordinate the control methods used in the conformity assessment process.