4. Encourages Member States to enact or improve legislation, regulations, procedures and stockpile management practices and to assist other States, at their request, to exercise effective control over access to and transfer of man-portable air defence systems so as to prevent the illicit brokering and transfer of 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，并应其他国家的要求向其提供协助，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中间商交易和转让以及擅自获取和使用；