PROTOCOL (No 33)
CONCERNING ARTICLE 157 OF THE TREATY ON THE FUNCTIONING OF THE EUROPEAN UNION
THE HIGH CONTRACTING PARTIES,
HAVE AGREED upon the following provision, which shall be annexed to the Treaty on European Union and to the Treaty on the Functioning of the European Union:
For the purposes of Article 157 of the Treaty on the Functioning of the European Union, benefits under occupational social security schemes shall not be considered as remuneration if and in so far as they are attributable to periods of employment prior to 17 May 1990, except in the case of workers or those claiming under them who have before that date initiated legal proceedings or introduced an equivalent claim under the applicable national law.