The purpose of this article is to share the conceptual framework, design, and impact evidence of a coach development program that was aimed at teaching coaches how to act need-supportive toward their athletes. Informed by Self-Determination Theory, the Motivation Activation Program in Sports (MAPS) was developed to contribute a coach interpersonal-style perspective to the Norwegian Ski Federation education system. The program was delivered at the Norwegian College of Elite Sport throughout the 2016/2017 season as a test trial. This article is organized into three sections. First, a detailed description of the conceptual framework used to inform MAPS is offered. Next, a thorough description of MAPS building components is provided. The third section of the article presents impact evidence of coaches’ learning experiences together with coaches’ practice examples of need-supportive coaching skills. Results reveal that MAPS taught coaches about need-supportive skills at the intrapersonal (awareness of own coaching practice) and interpersonal (interaction with athletes) level. In addition, effective need-support for athletes required sufficient time for each athlete, a gradual approach to athlete understanding, and a thorough consideration of specific situations.