Homework: The codecision procedure in the EU

Hey,
this is my third entry and I want to explain how the codecision procedure in the EU works.

First the European Commission submits a proposal to the European Parliament(EP) and to the Council of the EU. Then the EP reads the proposal and tries to find an opinion. If the EP has an opinion, then the Commission amends it to the proposal and submits an amended proposal to the Council.
Now it's the turn of the Council. There are three possibilities:
1.) The Council approves all the amendments of the EP, so the act can be adopt as amended by the EP.
2.) If the EP hasn't amended anything, the Council can adopt the act too.
3.) After the Council has received the proposal, it adopts a 'common position' with a qualified majority. Then the Commission publishes the notification of to Council.

If the third possibillity is the case then the EP begins with the second reading and checks the common position of the Council. Now there are also three possibillities how the EP can react:
1.) If the EP approves the position of the Council or makes no comments at all, the act is deemed to be adopted immediately.
2.) If the EP rejects the 'common position' of the Council, the procedure stops and the act is deemed not to be adopted.
3.) The EP wants to propose amendments to the common position of the Council.

If the third possibillity is the case, then the Commission has to check the amendments and has to give an opinion about the whole amended position. Now there are two possibillities:
1.) The Council approves the amended position...
a) ...by a qualified majority if the Commission has delivered a positive opinion, that means if the Commission agrees with the amendments.
b) ...unanimously if the Commission has delivered a negative opinion and disagrees with the amendments.
2.) The Council does not approve all amendments of the EP. So the president of the Council and the president of the EP (by mutual agreement) convene the Conciliation Committee. The Commission also takes part in the conciliation works. The goal of this Conciliation Commitee is to find an agreement so that the amendments of the EP and the common position of the Council are accomplished.
If the second possibillity is the case, then there are two possibillities again:
1.) The Conciliation Commitee brings about an agreement and the EP and the Council approves the act with an absolute or a qualified majority. But if one of the bodies doesn't approve, the act is not adopted.
2.) The Conciliation Committee doesn't bring about any agreement. That means that the act is not adopted.

So, I hope you can understand it. At first it wasn't very easy to understand the whole procedure, but after a detailed thinking about it, it wasn't too difficult anymore. The only confusing things were the mistakes in the scheme.

See you,
Patrick