Article 47 Vienna Convention on Consular Relations
Exemption from work permits
1.Members of the consular post shall, with respect to services rendered for the sending State, be exempt from any obligations in regard to work permits imposed by the laws and regulations of the receiving State concerning the employment of foreign labour.
2.Members of the private staff of consular officers and of consular employees shall, if they do not carry on any other gainful occupation in the receiving State, be exempt from the obligations referred to in paragraph 1 of this article.
See also: Article 46 Vienna Convention on Consular Relations