2. The competent authorities shall examine the conformity of the notifications with the requirements of this Directive, the accuracy and completeness of the information given, the correctness of the classification and, where appropriate, the adequacy of the waste management, safety, and emergency response measures.

3. If necessary, the competent authority may:

(a) ask the user to provide further information or to modify the conditions of the proposed contained use. In this case the proposed contained use cannot proceed until the competent authority has given its approval on the basis of the further information obtained or of the modified conditions of the containded use;

(b) limit the time for which the contained use should be permitted or subjected it to certain specific conditions.

4. In the case of first-time use in an installation as referred to in Article 8:

- where such use involves genetically modified micro-organisms in Group I, the contained use may, in the absence of any indication to the contrary from the competent authority, proceed 90 days after submission of the notification, or earlier with the agreement of the competent authority;

- where such use involves genetically modified micro-organisms in Group II, the contained use may not proceed without the consent of the competent authority. The competent authority shall communicate its decision in writing at the latest 90 days after submission of the notification.

5. (a) Operations notified under Article 9 (2) and Article 10 (1), may in the absence of any indication to the contrary from the competent authority, proceed 60 days after submission of the notification, or earlier with the agreement of the competent authority.

(b) Operations notified under Article 10 (2) may not proceed without the consent of the competent authority. The competent authority shall communicate its decision in writing at the latest 90 days after sumbission of the notification.

6. For the purpose of calculating the periods referred to in paragraphs 4 and 5, any periods of time during which the competent authority:

- is awaiting any further information which it may have requested from the notifier in accordance with paragraph 3 (a) or

- is carrying out a public inquiry or consultation in accordance with Article 13

shall not be taken into account.