Abstract
Following Poland access to European Union, cultivation and processing of fibrous hemp has been subjected to subsidies and legal regulations of the EU. The criterion for the subsidy is the content of tetrahydrocannabinol (THC) below 0.2% in dry green matter. The control of THC content in fibrous hemp is a responsibility of the Agency for Restructuring and Modernization of Agriculture (ARMA). The control of THC content in 2004–2011 has been carried out by the Institute of Natural Fibers and Medicinal Plants based on agreements signed with ARMA. Controls covered at least 20% of hemp area eligible for direct payments to agricultural land. The results showed that the THC content in hemp was below the 0.2% for any of selected hemp producer.