Because of the recognized value of exercise for older adults, senior fitness programs have been developed in various facilities throughout the United States and in many other countries. However, there appears to be a shortage of professionally trained senior fitness specialists to develop and instruct such programs. A number of professional health and fitness organizations/associations and individual entrepreneurs have developed training programs leading to some type of certification. However, because there are no published curriculum standards to guide the development of these training programs, they often lack components essential for teaching students how to instruct safe and effective classes for senior participants. Curriculum Standards to Prepare Senior Fitness Instructors, developed by a national coalition, were presented at the 1995 International Conference on Aging and Physical Activity in Colorado. This project was undertaken not to promote national certification or licensing but, rather, to help educators plan training programs. Input from the conferees was synthesized into the standards, which are provided in this paper.