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The Control of Asbestos Regulations 2006 (SI 2006 No. 2739) prohibit the importation of asbestos or any product containing it unless allowed by an exemption. Customs declarations for consignments from non EU countries brought into free circulation are checked by HM Revenue and Customs who select for further scrutiny those declarations using a commodity code indicating that asbestos may be present. Inquiries are undertaken to ascertain if asbestos is, in fact, present and if any such goods qualify for an exemption or must be detained. For indirectly imported goods, such as those already in free circulation inside the EU, the single market means that import control checks were dependent on the first member state which the goods entered.