Compliance is the most critical factor in fur sourcing. You must ensure the supplier provides a CITES (Convention on International Trade in Endangered Species) certificate if applicable, although most commercial beaver fur is sourced from regulated trapping. For the US market, products must comply with the Fur Products Labeling Act, requiring labels to state the animal's name, country of origin, and whether the fur is dyed or natural. For the EU, ensure adherence to REACH regulations regarding the chemicals used in the tanning and dyeing process.