The permitted vertical load (TWR) of a trailer attached to the vehicle. Also referred to as Tongue Load Rating (TLR) or Vertical Load Rating (VLR)\n\nTypical unit code(s): KGM for kilogram, LBR for pound\n\n* Note 1: You can indicate additional information in the [[name]] of the [[QuantitativeValue]] node.\n* Note 2: You may also link to a [[QualitativeValue]] node that provides additional information using [[valueReference]].\n* Note 3: Note that you can use [[minValue]] and [[maxValue]] to indicate ranges.