Thailand's Department of Agricultural Technology has developed a manual to control the contamination of banned substances in agricultural products. This manual will be distributed to farmers and operators to ensure compliance. Inspections will be conducted at places with potential residual contamination, and if contamination is found, the cause must be reported. Thailand will also keep the General Administration of Customs of China informed of the situation. Currently, 8 laboratories have been certified by the Department of Agricultural Technology and China, with an additional 4 expected to be certified in time for the durian peak season.