Foreign language teaching in many Asian-Pacific countries in recent decades has shifted toward communicative-focused instruction. However, researchers have reported a gap between policy and practice. To incorporate teachers' voices in adopting the communicative approach in the curriculum, this study explores factors that promote or hinder EFL teachers' implementation of Communicative Language Teaching (CLT) in Taiwanese college English classes. The findings indicated that the factors that impacted implementation of CLT related to teachers, students, the educational system, and suitability of CLT in the local context. Also, certain situational constraints were found to hinder the implementation of CTL. The article provides practical recommendations for teachers, educators, and policy makers to further improve teacher training, curriculum design, and situational constraints to ensure success in implementing the CLT approach.