Achieving consistent and repeatable quality is the key to scalability of additive manufacturing (AM). This special issue focuses on novel approaches toward rapid qualification of AM products and processes. The topics of interest can potentially encompass aspects ranging from Process Innovation, Design, Digital Twins, Modeling, Monitoring, Machine Learning, Metrology (including non-destructive evaluation), and Materials Science (including testing). Contributors are urged to augment methodological rigor with practically-relevant experiments.