CNAE BrazilClass

CNAE Brazil 42.21-9—Works for the generation and distribution of electricity and for telecommunications

Class · Classificação Nacional de Atividades Econômicas (2.3 (2025))

Where 42.21-9 sits

  1. F Construction
  2. 42 Infrastructure works
  3. 42.2 Infrastructure works for electricity, telecommunications, water, sewage and pipeline transport
  4. 42.21-9 Works for the generation and distribution of electricity and for telecommunications

Contains 5 narrower codes

What 42.21-9 includes

  • The construction of dams and reservoirs for the generation of electricity
  • The construction of hydroelectric, wind, nuclear, thermoelectric, etc. power plants, stations and substations
  • The construction of electricity transmission and distribution networks, including rural electrification services
  • The works for the implementation of telecommunications services: • construction and maintenance of long and medium distance telecommunications networks. • the execution of installation projects for telephone stations and telephone exchanges
  • The construction of electrification networks for railways and subways
  • Maintenance of electrical power distribution networks, when performed by a company that is neither a producer nor a distributor of electrical power

What 42.21-9 excludes

  • Maintenance of electricity networks when performed by electricity production and distribution companies (group 35.1)
  • Submarine cable installation (42.91-0)

42.21-9 in other systems

Hover a badge to see the evidence source. How our conversions work →