Load securing of dumps on trailers

For some time now, rumors have circulated that securing storage containers on trailers is no longer permitted by means of chains in the Y or V procedure. However, the latest state of affairs was quite different, but this is not the main point. I would like to know how this is handled in practice by the control bodies? If it is no longer permitted, would I be interested, why? I/we proceed with securing hollows -about 15t., by means of chain and ratchet spanner (spannsc The clamping locks are designed for 6.3t. permitted lashing force, the chains accordingly. The trailer of a well-known manufacturer, has been delivered for this type of tension about a year ago. I try to adjust pictures to this, if the computer allows me to do so. Zero thread