Current modernization and fielding plans for the Army Tactical Trailer Fleets are increasingly behind. Many Line-Haul and Engineer Transportation Battalions are using antiquated equipment to transport cargo and equipment that has led to increased maintenance needs and equipment down time to the detriment of mission success. Emphasis needs to be placed on fielding plans and modernization of the M872 series tactical semi-trailer fleet and the M172 series 25 ton low-boy fleet for safe, reliable, and complete mission success for the Army National Guard Transportation and Engineer units.