399- وقيل إنه في ضوء الطابع المعقد للموضوع، قد تتطلب دراسة المياه الجوفية وقتاً أطول مما توقعه المقرر الخاص.
It was decided that areas regulated by regional law, which some members thought were conceptually different from lex specialis, should be considered within this topic.