Repair and maintenance of machinery
What this code covers
Use this class for repair and maintenance of machinery when the main activity includes Repair and maintenance of engines, except for motor vehicles, ships, boats and aircraft and Repair and maintenance of railway engines. Check exclusions and nearby codes before applying it to a mixed activity.
Official NACE Rev. 2.1 labels and explanatory notes are imported from the source dataset. Plain-language explanations are shown separately so readers can compare interpretation with the source text.
No child codes; this is a class-level code.
- This class includes the repair and maintenance of industrial and commercial machinery and equipment (for example, sharpening or installing machinery blades and saws); the provision of welding (for example, automotive, general) repair services; the repair of agricultural and other heavy and industrial machinery and equipment (for example, forklifts and other materials handling equipment, machine tools, commercial refrigeration equipment, construction equipment and mining machinery), including machinery and equipment of division 28.
- repair and maintenance of engines, except for motor vehicles, ships, boats and aircraft
- repair and maintenance of railway engines
- repair and maintenance of pumps, compressors and related equipment
- repair and maintenance of civilian ship and boat engines, see 33.15
- repair and maintenance of civilian aircraft engines, see 33.16
- repair and maintenance of engines for military fighting vehicles, ships, boats, air and spacecraft, see 33.18
- installation, repair and maintenance of furnaces and other heating equipment, see 43.22
- Compare with 33.15, 33.16, 33.18 when the main activity overlaps another code.
- Check national equivalent caveats before using this code for local registration or filing workflows.
- If the main revenue activity appears in an exclusion, compare the alternative code before deciding.
Use this guide as classification support, not legal, tax, filing, or regulatory advice.
- - This class includes the repair and maintenance of industrial and commercial machinery and equipment (for example, sharpening or installing machinery blades and saws); the provision of welding (for example, automotive, general) repair services; the repair of agricultural and other heavy and industrial machinery and equipment (for example, forklifts and other materials handling equipment, machine tools, commercial refrigeration equipment, construction equipment and mining machinery), including machinery and equipment of division 28.
- - repair and maintenance of engines, except for motor vehicles, ships, boats and aircraft
- - repair and maintenance of railway engines
- - repair and maintenance of pumps, compressors and related equipment
- - repair and maintenance of fluid power machinery
- - repair of valves
- - repair of gearing and driving elements
- - repair and maintenance of industrial process furnaces
- - repair and maintenance of lifting and handling equipment
- - repair and maintenance of industrial refrigeration equipment and air-purifying equipment
- - repair and maintenance of commercial-type general-purpose machinery
- - repair of power-driven hand tools
- - repair and maintenance of metal-cutting and metal-forming machine tools and accessories
- - repair and maintenance of other machine tools
- - repair and maintenance of agricultural and forestry tractors
- - repair and maintenance of agricultural machinery, forestry and logging machinery
- - repair and maintenance of metallurgy machinery
- - repair and maintenance of machinery for mining, construction, oilfields and gas fields
- - repair and maintenance of food, beverage and tobacco processing machinery
- - repair and maintenance of textile apparel and leather production machinery
- - repair and maintenance of papermaking machinery
- - repair and maintenance of plastic and rubber machinery
- - repair and maintenance of other special-purpose machinery of division 28
- - repair and maintenance of weighing equipment
- - repair and maintenance of vending machines
- - repair and maintenance of cash registers
- - repair and maintenance of photocopy machines
- - repair of calculators, electronic or not
- - repair of typewriters
- - repair and maintenance of civilian ship and boat engines, see 33.15
- - repair and maintenance of civilian aircraft engines, see 33.16
- - repair and maintenance of engines for military fighting vehicles, ships, boats, air and spacecraft, see 33.18
- - installation, repair and maintenance of furnaces and other heating equipment, see 43.22
- - installation, repair and maintenance of elevators and escalators, see 43.24
- - repair and maintenance of computers, see 95.10
- - repair and maintenance of engines for motor vehicles, see 95.31
- - Repair and maintenance of engines, except for motor vehicles, ships, boats and aircraft
- - Repair and maintenance of railway engines
- - Repair and maintenance of pumps, compressors and related equipment
- - Repair and maintenance of fluid power machinery
- - Repair and maintenance of civilian ship and boat engines
- - Repair and maintenance of civilian aircraft engines
- - Repair and maintenance of engines for military fighting vehicles, ships, boats, air and spacecraft
- - Installation, repair and maintenance of furnaces and other heating equipment
What is NACE 33.12 used for?
Use NACE 33.12 for repair and maintenance of machinery when the main activity matches this scope: Use this class for repair and maintenance of machinery when the main activity includes Repair and maintenance of engines, except for motor vehicles, ships, boats and aircraft and Repair and maintenance of railway engines. Check exclusions and nearby codes before applying it to a mixed activity.
What are typical examples for 33.12?
Typical examples include Repair and maintenance of engines, except for motor vehicles, ships, boats and aircraft, Repair and maintenance of railway engines, and Repair and maintenance of pumps, compressors and related equipment.
When might 33.12 not be the right code?
Review another code when the activity is closer to repair and maintenance of civilian ship and boat engines, see 33.15 and repair and maintenance of civilian aircraft engines, see 33.16.
Which codes should I compare before choosing 33.12?
Compare 33.12 with 33.15 Repair and maintenance of civilian ships and boats, 33.16 Repair and maintenance of civilian air and spacecraft, and 33.18 Repair and maintenance of military fighting vehicles, ships, boats, air and spacecraft when the activity description is ambiguous.
Use this class for repair and maintenance of civilian ships and boats when the main activity includes Repair and routine maintenance of civilian ships and Repair and maintenance of pleasure boats. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for repair and maintenance of civilian air and spacecraft when the main activity includes Repair and maintenance of civilian aircraft (except factory conversion, factory overhaul, factory rebuilding) and Repair and maintenance of civilian aircraft engines. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for repair and maintenance of military fighting vehicles, ships, boats, air and spacecraft when the main activity includes Repair and maintenance of military air and spacecraft and Repair and maintenance of military fighting vehicles. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for plumbing, heat and air-conditioning installation when the main activity includes Installation, maintenance and repair of: and Heating systems (e.g. heat pumps, solar thermal collectors). Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for other construction installation when the main activity includes Installation in buildings or other construction projects of: and Elevators, escalators, including stairlifts. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for repair and maintenance of computers and communication equipment when the main activity includes Desktop computers and Laptop computers. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for repair and maintenance of motor vehicles when the main activity includes Repair and maintenance of motor vehicles, including trailers and semi-trailers and Mechanical repairs. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for repair and maintenance of fabricated metal products when the main activity includes Repair of metal tanks, reservoirs and containers and Repair and maintenance for pipes and pipelines. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for repair and maintenance of electronic and optical equipment when the main activity includes Repair and maintenance of the measuring, testing, navigating and control equipment of group 26.5 and Aircraft engine instruments. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for repair and maintenance of electrical equipment when the main activity includes Repair and maintenance of power, distribution, and specialty transformers and Repair and maintenance of electric motors, generators and motor generator sets. Check exclusions and nearby codes before applying it to a mixed activity.
Use this group for repair and maintenance of fabricated metal products, machinery and equipment when the main activity includes Repair and maintenance of fabricated metal products and Repair and maintenance of machinery. Check exclusions and nearby codes before applying it to a mixed activity.
Rev. 2 code 33.12 can map to more than one Rev. 2.1 class: 33.12 Repair and maintenance of machinery, 33.15 Repair and maintenance of civilian ships and boats, 33.18 Repair and maintenance of military fighting vehicles, ships, boats, air and spacecraft.
Official close match imported from NACE Rev. 2.1.
Datasets, CRM segments, KYC rules, reporting logic, and historical joins may need review because the activity scope is not a simple unchanged carry-over.
Review the official explanatory notes for each target code and confirm whether the business activity still fits the suggested Rev. 2.1 class.