Chapter 6, on “Prudential Supervision under the SSMR”, develops on the division of powers among and the interaction of the ECB and NCAs within the SSM; the procedure and the criteria for the classification of supervised entities and groups as significant; the direct prudential supervision of these entities and groups by the ECB within the SSM and the role of the Joint Supervisory Teams (JSTs); the beginning and end of direct supervision by the ECB; the direct prudential supervision of less significant supervised institutions and groups (LSIs and LSGs) by NCAs within the SSM and the powers of the ECB in respect under Article 6(5) SSMR; the specific supervisory tasks of the ECB within the SSM (except for those already discussed in Chapter 2 ); and its specific supervisory powers.