ARTICLE 19
Government Service
(1) Remuneration, including pensions, paid by, or out of funds created by, a Contracting State or a political subdivision or a local authority thereof to any individual in respect of services rendered to that State or subdivision or authority thereof in the discharge of functions of a governmental nature shall be taxable in that State.
(2) The provisions of Articles 15, 16 and 18 shall apply to remuneration and to pensions, in respect of services rendered in connection with a business carried on by a Contracting State or a political subdivision or a local authority thereof.