This is from the Montana trapping regulations:
Trap Identification (MCA-87-6-601(2)) – Metal identification tags must be fastened to all traps. Metal tags must bear the name and address of the trapper or a personal identification number, which is the trappers date of birth and ALS number. Metal identification tags for snares must have the trap owners name, address, and telephone number. Landowners trapping on their own lands and irrigation right- of-way contiguous to their land do not need to tag traps or snares.
