1. A procedure or technique that has been formally authorized, accepted, or sanctioned by a relevant authority, organization, or regulatory body
The laboratory must follow the approved method for testing water quality.
O laboratório deve seguir o método aprovado para testar a qualidade da água.
2. An established and validated process that meets established standards and requirements
The approved method for this surgical procedure has been documented and certified.
O método aprovado para este procedimento cirúrgico foi documentado e certificado.