1. The receiving State may at any tine and without having Eo explain its decision notifythesendingstatethaEthedip1omaticcourieris@ornoEacceptable. In any Euch case, the sending SBaEe shall' as aPproPriate' eiEher reeall the diplornatic courier or terminate his functions to be perforned in the receiving State. A person may be declared non grata or not acceptabLe before arriving in the territory of.the receiving State. 2. If lhe sending State refuses or fails within a reasonable period to carry out its obligations under paragraph I of this arEicle, the receiving State may refuse to recqgnize Ehe person concerned as a diplqrratic courier.A/40/447 English Page l0 Facilities I- The receiving State or, as the case rnay be, the transit State shall accord tothe diplomatic courier the facilities necessary for the performance of his f unct,ions. 2- The receiving State or, as the case may be, t,he transit State shal,I, uponrequest and to the extent practicable, assist, the diplonalic courier in obtainingtemporary accommodation and in establishing contact through the telecommunications network with Ehe sending State and its missions, consular postg or delegations,wherever situated. Article 14 Entrv into the territorv of the receivinq State or the transit State 1- The receiving State or, as the case nay be, the t,ransit State shall permit thediplomatic courier to enter its Eerritory in the performance of his functions. 2. Visas, where reguired, shall be granted by Ehe receiving state or the transitState to the diplomatic courier as promptly as possible. Article 15 Freedom of movement Subject to its laws and regulations concerning zones entry into wbich isprohibited or regulated for reasons of national security, the receiving State or,as the case may be, the transit State shatl ensure to the diptonaEic courier suchfreedom of movement and travel in its territory as is necessary for tbe performanceof his functions. Article 15 Personal protection and inviolability
**Analysis**
This text appears to be related to diplomatic procedures and international relations, specifically addressing the rights and privileges of diplomatic couriers and the obligations of sending and receiving states. The topics covered include the accreditation and termination of diplomatic couriers, facilities and assistance provided to them, entry into the territory of the receiving state, freedom of movement, and personal protection and inviolability. These themes suggest a connection to international relations and diplomacy, rather than any of the other categories.

**Category**
International relations