A decree of the Conseil d’Etat shall determine the terms and conditions for the application of this chapter, in particular :
1° The conditions under which enforcement officers have access, in order to carry out their duties, to information held by the social security and tax authorities;
2° The conditions under which and the duration for which replacement income may be withdrawn pursuant to the first paragraph of Article L. 5426-2;
3° The conditions under which Pôle emploi recovers undue benefits pursuant to Articles L. 5426-8-1 to L. 5426-8-3 as well as the portion of the monthly instalments referred to in the same Article L. 5426-8-1;
4° The conditions under which Pôle emploi imposes and recovers the penalty provided for in Article L. 5426-5.