Abstract: A concrete mixing truck having an apparatus for mixing materials used to make concrete includes a mixing product receiving and delivery assembly, a platform, which is located proximate the mixing product receiving and delivery assembly for providing operator access thereto, and a repositionable safety rail. The safety rail is located on and partially encloses the platform and is positionable, via a hinge or other suitable means, between an upraised position and a lowered position. With the safety rail in the upraised position, an operator present on the platform is provided with an added measure of safety to prevent against accidental falling and resulting injury. With the safety rail in a lowered position, the platform is essentially inaccessible to operators and the mixing product receiving and delivery assembly is unobscured and completely accessible to machinery such as associated with a ready-mix concrete plant.