some resorts or zones specify their own uniforms, the official Alpine uniform is defined as a jacket that is "...red with the proper markings. These markings will include a white cross on the back, a white cross on both upper arms and an optional white cross on the breast." The yellow and blue uniform was retired in 2016, and will be fully phased out by 2020. See also Emergency medical technician Lifeguard Mountain rescue Wilderness first aid References Serendipity in Science: Twenty Years at Langmuir University an Autobiography by Vincent J. Schaefer, ScD Compiled and Edited by Don Rittner Circle Square Press, Voorheesville, NY 2013 Chapter 11 The Adirondack Snow Trains pg 275 Protective service occupations Rescue agencies Patrol