This work holds the proceedings of the 4th UPI International Conference on TVET, held on November 15-16, 2016 in Bandung, Indonesia. Regionalization and harmonization in TVET examines research and practices in both national and international contexts. The chapters discuss standardization in TVET regionalization and harmonization, skill and personal development, social and cultural issues, teaching innovations in TVET, and innovations in engineering and education.