4. Encourages Member States to enact or improve legislation, regulations, procedures and stockpile management practices to exercise effective control over access to and transfer of man-portable air defence systems so as to prevent the illicit transfer and unauthorized access to and use of such weapons;
4. 鼓励会员国制订或改进法律、条例、程序和储存管理办法，以便对单兵携带防空系统的获取和转让进行有效控制，以防止此种武器的非法转让和擅自获取及使用；