(16)In particular, the Commission should be empowered to decide on the coverage of the smallest enterprises and all-resident enterprise groups, update the list, definitions and continuity rules of the register characteristics in the Annex, establish common quality standards as well as the content and periodicity of the quality reports, and adopt the rules for updating registers. Since those measures are of general scope and are designed to amend non-essential elements of this Regulation, inter alia , by supplementing it with new non-essential elements, they must be adopted in accordance with the regulatory procedure with scrutiny provided for in Article 5a of Council Decision 1999/468/EC.