The suspension of timber harvesting activities remains in force for a trail period of three hundred sixty days instead of ninety, after which the Minister, on the basis of research carried out, may extend the measure for such period as a deems fit. Upon revocation of these Rules or the exemption therefrom of any forest area, the conditions set out in the new rule 6 apply; licences shall be approved only in respect of felling plans approved by the Chief Conservator of Forests and harvesting shall