Part Five Radio Activities and Frequency Management 32. Scope The provisions of Part Five shall apply to all radio activities (Article 2(p)), unless exemptions have been made by the Department. 33. Assignment of Frequency The Department shall assign radio frequencies for radio activities within the framework of actual or planned use of frequencies. Consideration may be made regarding future frequency needs. 34. Certificate to Use Radio Equipment and Radio Systems Radio equipment or a system with interworking radio equipment may only be possessed, established or used provided a certificate has been issued by the Department. The certificate may be issued subject to conditions, including transmission effect, location of equipment, band width, area of coverage, connection to the public telecommunications networks and the requirement to implement security measures to prevent illegal use. 35. Refusal of Assignments or Certificates. Revocation (1) The Department may refuse to issue a frequency assignment or certificate pursuant to Articles 33 or 34 hereof respectively, when this is justified by general telecommunications policy objectives (Article 5) or by essential requirements pursuant to article 25 (1) hereof, or because a permit to establish or operate a telecommunications network or service has not been obtained. A certificate may also be refused if the radio equipment fails to comply with the requirements stipulated in or under this Proclamation. (2) An assignment or a certificate may be revoked due to conditions as stated in sub-article (1) of this Article or if other major conditions for the assignment or the certificate are no longer satisfied. Frequency assignment may also be revoked pursuant to international agreements which Eritrea has ratified. Part Six Postal Services 36. Operator's Permit (1) The Department shall issue a permit to Eritrean Postal Services (EPS) allowing EPS to be the public postal service operator and to perform all or any functions relating to the operation and provision of postal services in the State of Eritrea. (2) Courier services and other specific postal services as determined by the Department are limited competition activities (Article 2(g)). A person other than EPS desiring to provide such services must obtain an operator's permit. (3) All postal services other than the services referred under Article 36 (2) hereof are exclusive rights activities (Article 2(e)). (4) A permit issued under this Article shall be subject to such conditions as the Department may specify in the permit or as may be specified in regulations referred to in the permit. 37. Transmission of Postal Articles