Artikel 20

1. The Government shall facilitate the entry, stay and departure of the persons listed below:
a) representatives of Member States, as defined in Article XIV of Annex 1 of the Convention;
b) staff members and members of their family forming part of their household;
c) experts and members of their family forming part of their household;
d) domestic and private servants of staff members.
2. The Government shall, on the request of the Agency, facilitate the entry, stay and departure of persons attending official activities and programmes specified in Article V of the Convention.
3. Visas or, if appropriate, multiple-entry visas required by persons referred to in paragraph 1 and 2, shall be granted without charge and as promptly as possible.
4. The provisions under paragraphs 1 to 3 of this Article shall not preclude a request for presentation of reasonable evidence to establish that persons claiming the treatment provided for in these paragraphs fall within the categories described in paragraph 1 of this Article.