(a) To choose one of the national approaches on leachate presented in Appendix B and use the results from that method as one of the elements for decisions for the inclusion of a particular waste in Annex VIII or Annex IX;
假如确实需要有一种统一的、用于本公约的方法，那么，现有多种选择，可以用来拟定这么一种统一方法：