In the ECB’s case, its powers received a type of constitutional affirmation in the Treaty on European Union. This establishes the ECB’s independence and defines its “primary objective,” according to Protocol (No 4), Chapter 2, Article 2, as “price stability.” The same article also specifies that “Without prejudice to the objective of price stability, it shall support the general economic policies in the Union with a view to contributing to the achievement of the objectives of the Union as laid down in Article 3 of the Treaty on European Union.”