The document summarizes key points from a symposium on properly closing steel drums in accordance with regulations for shipping hazardous materials:
1) Shippers are responsible for following closure instructions to ensure drums are properly sealed to prevent leaks during transport.
2) Closure instructions have become more standardized but must match the manufacturer's specifications and be kept up to date.
3) Shippers should check that drums are properly torqued and dimensions meet requirements before shipping, and should contact manufacturers if drums cannot be safely closed or sealed.
![CFR49, 178.2(c) ,[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)