(41)Member States should ensure that customs office personnel or other authorised persons in accordance with national rules carrying out controls under this Regulation have the appropriate resources and knowledge, for example by way of training made available to them, and are sufficiently equipped to address cases of illegal trade in the gases, products and equipment covered by this Regulation. Member States should designate the customs offices or other places that meet those conditions and are therefore mandated to carry out customs controls on imports, exports and in cases of transit.