Request for a preliminary ruling from the Verwaltungsgericht Giessen (Germany) lodged on 27 December 2012 — Johannes Peter v Bundeseisenbahnvermögen

(Case C-610/12)

2013/C 101/17

Language of the case: German

Referring court

Verwaltungsgericht Giessen

Parties to the main proceedings

Applicant: Johannes Peter

Defendant: Bundeseisenbahnvermögen

Question referred

In a case of unequal treatment that has already been found to exist in the past, between married civil servants and those living in registered life partnerships, is it in accordance with Directive 2000/78/EC (1) to grant, pursuant to the applicable constitutional principles in the Federal Republic of Germany, a retrospective claim for equal treatment under the law on remuneration only with effect from the beginning of the financial year in which the civil servant first made the claim to his employer?

(1)  Directive 2000/78/EC of 27 November 2000 establishing a general framework for equal treatment in employment and occupation (OJ 2000 L 303, p. 16).