1. Formal written or verbal exchange of information between government bodies, organizations, or institutions following established protocols and procedures
The official communication from the Ministry confirmed the policy changes.
A comunicação oficial do Ministério confirmou as mudanças de política.
2. A message or announcement issued by an authorized representative or body that carries legal or administrative weight
All official communications must be signed by the department head.
Todas as comunicações oficiais devem ser assinadas pelo chefe do departamento.