 The test you are about to watch was conducted in accordance with the American Society for Testing and Materials. The United States Marine Corps Organizational Combat Uniform shown here is required to be flame resistant. The purpose of this test is to conduct a side-by-side comparison of textiles used in both the Marine Corps and the United States Navy. Similar to previous Navy working uniforms, the current working uniform shown here is not flame resistant and is not required to be. It is important to note that the Navy working uniform is not organizational clothing like that of the Marine Corps uniform in this test.