Restraining Heavy Excavators & Attachments The attached NHVR documents provide advice on restraining Heavy Excavators and Attachments. NHVR information sheet – Class 1 load carrying vehicles Schedule 8 Division 2 Section 13 of HVNR (pages 103/104) | Share This Story, Choose Your Platform! FacebookXRedditLinkedInWhatsAppTumblrPinterestVkEmail