A trust enabled service is a reliable service which satisfies service and trust requirements, by applying additional functions for trust provisioning capabilities to conventional ICT service entities (including resources, stakeholders, and users), that is able to develop better quality of services and experience. In order to provide trust enabled features to existing ICT services, relevant architectures with key components are required. Therefore, this draft Recommendation provides a functional architecture for trust enabled service provisioning. It describes the concept and requirements and specifies related functional blocks, reference points and trust enabled service provisioning procedures between related functional blocks to support trust provisioning processes.