Companies can measure EHS software implementation success by tracking adoption, data quality, task completion, reporting speed, overdue corrective actions, inspection completion rates, training compliance, incident follow-up time, and user feedback. Safety managers should compare performance before and after launch to determine whether the system is reducing paperwork, improving visibility, and helping teams act faster. In U.S. high-risk industries, success should also include field usability, supervisor engagement, multi-site consistency, and better access to audit-ready records. A successful implementation is not just a configured system, but a safety workflow that people actually use.