8. Representatives who, during the period referred to in subdivision 1, took part in training activities recognized by the Chamber consisting of more PDUs than required under subparagraphs 1 and 2 of the second paragraph of section 3, may count the excess PDUs under general subjects but only during that period. Such representatives cannot count the excess PDUs accumulated in the general subjects listed in subdivision 1 under a subject pertaining to compliance with standards, ethics or business conduct or a specific subject.