1. A geographical region or zone that has been officially announced or formally designated by authorities for a specific purpose, such as quarantine, disaster management, or administrative jurisdiction
The government established a declared area to control the spread of the disease.
O governo estabeleceu uma área declarada para controlar a propagação da doença.
2. In legal and regulatory contexts, a zone formally identified and made public for regulatory compliance or protective measures
All businesses in the declared area must comply with new environmental standards.
Todos os negócios na área declarada devem cumprir com os novos padrões ambientais.