A centerline restraint includes a conventional center guide/restraint and a pair of a overrideable guide/restraint at either end. Each overrideable guide/restraint is lockable into one of three rotational positions about a common axis: a retracted position, an erect position and an overridden position. The overrideable guide/restraint has a yoke-shaped body with a pair of legs rotatably mounted on an axle which, in turn, is mounted on a base of the centerline restraint. Lift handles, each operatively connected to a spring-loaded plunger are used to adjust the overrideable guide/restraint between the three positions. A head of the spring-loaded plunger abuts one or more stops formed on the legs of the overrideable guide/restraint to lock the overrideable guide/restraint in various predetermined positions. Lift handles operatively connected to the plungers, when operated, cause the overrideable guide/restraint to switch between positions.