New South Wales Consolidated Acts(cf model provisions, s 70)
(1) Mass requirement A breach of a mass requirement is a severe risk breach if the subject-matter of the breach is equal to or greater than the lower limit for a severe risk breach of the requirement.
(2) Dimension requirement A breach of a dimension requirement is a severe risk breach if the subject-matter of the breach is equal to or greater than the lower limit for a severe risk breach of the requirement.
(3) Load restraint requirement A breach of a load restraint requirement is a severe risk breach if the loss or shifting of the load concerned:(a) has already occurred or is imminent, and(b) is assessed by the officer or court concerned to involve an appreciable risk of harm to public safety, the environment, road infrastructure or public amenity.