BTL is a testing laboratory accredited to ISO/IEC 17025. In Taiwan, BTL was accredited by the Taiwan Accreditation Foundation (TAF) in 2020 as a product certification body in accordance with ISO/IEC 17065. Following review by the National Communications Commission (NCC) and TAF, BTL obtained testing and certification qualifications for controlled telecommunications radio-frequency devices and telecommunications terminal equipment, including PLMN01, PLMN08, PLMN10, PLMN11, PLMN12, PSTN01 and ADSL01.