The substance must be labelled as environmentally hazardous according to Regulation (EC) No. 1272/2008 (CLP Regulation). However, because of the limitation of the quantity transported in special packaging provision PP24 of the RID/ADR/IMDG Code, no marking of packages is required according to 5.2.1.8.1 of ADN or marking of containers, vehicles and wagons with the environmentally hazardous substance mark according to sub-section 5.3.6.1.