Peat (Including Peat Litter), Whether or Not Agglomerated

Peat's dominant commercial role in the US market is as a horticultural growing medium — sphagnum peat moss is a foundational component of potting mixes and soil amendments — though it also serves as a fuel and animal bedding (peat litter) in some applications. All forms, agglomerated or not, enter under a single tariff line, 2703000000. Canada is by far the leading supplier, with Latvia, Estonia, Denmark, and Lithuania rounding out the top sources, reflecting the vast boreal and Baltic peat deposits that supply North American and European horticulture markets. Importers should be aware that peat products may be subject to USDA APHIS review depending on whether they contain plant material or soil organisms.