PMI-SP® stands for Project Management Institute - Scheduling Professional certification. It is a certification program that validates the candidate's knowledge and skills in project scheduling, and their ability to develop and maintain project schedules that meet business needs. The PMI-SP® certification is designed for professionals who work in project management, project controls, or related fields, and who are interested in advancing their careers by obtaining a recognized certification in project scheduling. The certification covers a range of topics including scheduling concepts and techniques, schedule development and maintenance, schedule analysis and reporting, and project controls tools and techniques.