1. The Authority shall have the following tasks:

(a) based on the legislative acts referred to in Article 1(2), to contribute to the establishment of high-quality common regulatory and supervisory standards and practices, in particular by developing draft regulatory and implementing technical standards, guidelines, recommendations, and other measures, including opinions;

(aa) to develop and maintain an up-to-date Union supervisory handbook on the supervision of financial institutions in the Union which is to set out supervisory best practices and high-quality methodologies and processes and takes into account, inter alia, changing business practices and business models and the size of financial institutions and of markets;

(ab) to develop and maintain an up-to-date Union resolution handbook on the resolution of financial institutions in the Union which is to set out best practices and high-quality methodologies and processes for resolution, taking into account the work of the Single Resolution Board, and changing business practices and business models and the size of financial institutions and of markets;