text: With regard to this problem, the question of the safety of staff involved in handling items presumed to be dangerous was the subject of a study in depth undertaken several years ago by our Consultative Council for Postal Studies. This Council submitted its report ll to the Universal Postal Congress held in Rio de Janeiro in 1979, which adopted the following Recommendation C 76: Safety of staff involved in handling items presumed to be dangerous (mail bombs) Congress, Having noted the findings of the study on the protective measures to be applied in order to ensure the safety of postal staff involved in handling items presumed to be dangerous, undertaken in accordance with decicion C 56 of the 1974 Lausanne Congress, / ... Aware A/40/445 English Page 35 of the danger that mail bombs represent for postal staff involved in handling them, Concerned to protect postal staff in every way possible from the risks of explosion of dangerous objects, Recommends to postal administrations that they: a As preventive measures: i establish permanent liaison with the competent authorities of their countries (police, customs, national security committees, etc.) in order: to be informed of any threats or of signs indicating the dispatch of dangerous items; to settle questions concerning the examination of items and the destruction of dangerous articles; ii issue directives for their services based in particular on the information contained in the CCPS study on the measures to be taken to detect mail bombs and to protect staff against the risk of explosion when such items are discovered in the mail; iii ensure that the examination of items presumed to be dangerous is carried out by the most appropriate methods; iv have their national legislation adapted or supplemented, if necessary, with a view to authorizing operations enabling mail bombs to be detected; 
analysis: The text appears to be discussing the safety of postal staff handling potentially dangerous items, such as mail bombs. It mentions the need for postal administrations to establish liaison with authorities, issue directives, and adapt national legislation to detect and handle such items. This suggests that the category is related to the transportation and handling of goods, which is a critical aspect of the postal industry.