In order to be certain that your approach to load restraint is adequate it may be worth getting your load restraint system certified by a suitably qualified engineer.
This is particularly important if you are carrying an unusual cargo or are relying on custom designed structures to restrain your cargo.
Pages 237-239 of the Load Restraint Guide provide advice on what certification should cover and provide a certification template.
If you are in any doubt as to whether your load restraint system meets the performance standards you should have it certified.
When looking for a suitable consultant, look for a company or individual that has experience in developing certified load restraint guides, can provide examples of their work, and ideally, has direct practical experience with the load type in question.