Cross-border converter
EMTAK 2025 51101 → CAE Rev 4 equivalent (Portugal)
Estonia's national activity classification (EMTAK 2025) shares its 4-digit backbone with the EU NACE Rev 2.1 standard. We use that backbone to surface the equivalent CAE Rev 4 subclass(es) used in Portugal.
Shared EU parent
51.10
Passenger air transport
This class includes: - scheduled air transport of passengers over regular routes - charter flights for passengers - sightseeing flights This class also includes: - rental of air transport equipment with an operator for the purpose of passenger transport This class excludes: - rental of air transport equipment without an operator, see 77.35 - air ambulances, see 86.92
51101
Sõitjate õhutransport
51100
Transportes aéreos de passageiros
Compreende o transporte aéreo de passageiros em voos regulares ou não.
About this conversion
EMTAK 2025 is the activity classification used in Estonia. CAE Rev 4 is the equivalent system in Portugal. Both are national implementations of EU NACE Rev 2.1, so any 5th-digit subclass in one system can be traced back to a shared 4-digit EU class — and from there, forward into the other country's subclasses.
This page is generated for the query "EMTAK 2025 51101 to CAE Rev 4" and stays in sync with our monthly Market Intelligence sync.