Labelmaster's full line of 4GV Packaging has been designed, tested and certified in accordance with 49 CFR, ICAO, International Air Transport and IMDG/IMO requirements. Made of 200# or 275# DW corrugated, these Variation Two shippers are suitable for Packing Groups I, II or III liquids or solids by any mode of transportation. Our shipping systems may be used to ship "articles" including machine parts and batteries, and they meet ISTA Procedure 1A. To meet testing specifications, no more than the number of containers listed may be used in a Variation Two Shipper.