the day or the days on which citizens of the Union must satisfy, under the law of the Member State of residence, the requirements for voting or for standing as a candidate in that State
Any person who, on the reference date:
(a) is a citizen of the Union within the meaning of the second subparagraph of Article 8 (1) of the Treaty;
(b) is not a national of the Member State of residence, but satisfies the same conditions in respect of the right to vote and to stand as a candidate as that State imposes by law on its own nationals, shall have the right to vote and to stand as a candidate in elections to the European Parliament in the Member State of residence unless deprived of those rights pursuant to Articles 6 and 7.