1. Official authorization to install or fit equipment, fixtures, or components in a specific location, typically required by building regulations or authorities
The contractor obtained fitting permission before installing the air conditioning system.
O empreiteiro obteve permissão de instalação antes de instalar o sistema de ar condicionado.
2. Formal approval allowing modifications or attachments to be made to a building or structure
We need fitting permission from the landlord before we can mount the shelves.
Precisamos de permissão de instalação do proprietário antes de montar as prateleiras.