Definition / Belongs to this divisionThis division includes:
- engineering design (engineering design of machines, materials, tools, structures, processes and systems using the laws and principles of physics) and engineering consultancy with regard to:
- machines, industrial processes, industrial plants
- civil engineering, water engineering, transport engineering cooperation projects
- water management projects
- project related to electrical and electrical engineering, mining engineering, chemical engineering, mechanical engineering, industrial and systems engineering, safety engineering
- development and implementation of telecommunications and data transmission infrastructure projects
- air conditioning, refrigeration, sewage and air pollution control, waste management, acoustics, etc. development of a project using engineering activities
- geophysical, geological and seismic survey, forecasting
- geodesy:
- surveying, boundary and land surveying
- hydrographic survey
- subsurface survey
- cartographic and spatial information activities
It does not belong to this sectorThis division excludes:
- mining test drilling, see 09.10, 09.90
- development and publishing of related software, see 58.29, 62.01
- computer consultancy, see 62.02, 62.09
- the technical examination, see 71.20
- research and development related to engineering, see 72.19
- industrial design, see 74.10
- aerial photography, see 74.20

Definition / Belongs to this divisionThis division includes physical, chemical and other analytical tests of all types of substances and products, such as:
- acoustic and vibration testing
- minerals, etc. examination of its composition and purity
- food hygiene inspection, including veterinary inspection and control of food
- the physical and qualitative properties of materials, such as testing for strength, thickness, durability, radioactivity
- qualification and safety inspection
- full quality inspection of complete machinery, motorcycles, motor vehicles, electrical equipment, etc.
- radiographic examination of welds, joints, connections
- error testing
- measurement and testing of environmental indicators: air and water pollution, etc.
- the products - e.g. consumer goods, aircraft, pressure vessels, nuclear plant, equipment, etc. - certification, authentication
- periodic road safety inspections of motor vehicles,
- testing of model and mock-up experiments (eg aircraft, ship, dam model)
- police laboratory activity
It does not belong to this sectorThis division excludes:
- laboratory and other examinations and tests performed in the framework of veterinary care, see: 75.00
- establishment of human health diagnosis, medical and dental examination, analysis, see section 86

Definition / Belongs to this divisionThere are three types of scientific research and development in this sector: 1) Basic research: experimental or theoretical research whose primary purpose is to acquire new knowledge of the underlying phenomena and observable reality, without any intention of use or application. 2) Applied research: original research work carried out in order to acquire new knowledge, which is primarily aimed at solving specific practical goals and problems. 3) Experimental development: a systematic activity based on existing knowledge gained from previous research and / or practical experience, aimed at producing new materials, products and tools, introducing new processes, methods and services, and substantially improving existing or introduced ones.

The research and development activity belonging to the sector can be divided into two categories: scientific and technical research and development; research and experimental development on social sciences and humanities.
It does not belong to this sectorThis sector excludes:
- market research, see 73.20