The SSI Extended Range Foundations program provides all divers with the opportunity to expand their advanced diving skills and knowledge. Learn about using tec equipment with any diving system you are certified for and build on your basic skills to master balance, trim, fin techniques, positioning and communication. The Extended Range Foundations program provides supplemental training to existing certifications to increase diver confidence and control in the water. Upon completion of this program, you will earn the SSI Extended Range Foundations certification.