Voltage criteria in power systems during steady state and dynamic conditions are important for safe and secure grid operation and ensuring system planning with margin for security. This paper reviews and compares voltage stability criteria-specifically, voltage limit and transient voltage stability criteria across different countries and utilities used for power system planning and operation including India. Examining their implications for power system planning and operation, the study explores how criteria selection is influenced by regulatory frameworks, grid characteristics, and regional needs. By analyzing diverse approaches, the paper identifies commonalities and variations in voltage stability practices across the globe. It offers recommendations for tailoring criteria to specific contexts, emphasizing a balanced consideration of steady-state and transient stability. The research advances understanding of global voltage stability assessment methodologies, enabling better-informed decisions for ensuring grid reliability and sustainable energy delivery.