This TSPWG M supersedes ETL 04-10, Determining the Need for Runway Rubber Removal. This TSPWG M provides optional guidance for using continuous friction measuring equipment (CFME) to determine the need for rubber removal on runways. Currently, the airfield manager visually inspects the runway surface to determine when rubber removal is required. This procedure is subjective and can result in removing rubber too often (friction characteristics are good and markings are visible) or, in some cases, not removing rubber at the proper time. The procedure outlined in this TSPWG M provides an objective basis for determining when rubber needs to be removed. It is based on procedures currently used by the Federal Aviation Administration (FAA). Use this procedure only to determine rubber removal requirements; the airfield evaluation teams will continue to conduct routine baseline friction characteristics tests.