21.0

<div data-id="1" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">1. </span><span lang="en-US">INTRODUCTION</span></div>

<div data-id="2" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">2. </span><span lang="en-US">SERVICE AVAILABILITY</span></div>

<div data-id="3" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">3. </span><span lang="en-US">PARTICIPANT REGISTRATION</span></div>

<div data-id="4" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">4. AUTHORISATIONS</span></div>

<div data-id="5" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US"><span>5. DATA REGISTRATION</span></span></div>

<div data-id="6" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">6. SYSTEM PARAMETERS</span></div>

<div data-id="7" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">7. DISTRIBUTION OF REGISTRATION DATA</span></div>

<div data-id="8" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">8. STANDARD REPORTING ARRANGEMENTS</span></div>

<div data-id="9" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">9. FLEXIBLE REPORTING ARRANGEMENTS</span></div>

<div data-id="10" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">10. MAINTENANCE OF REPORT VERSIONS</span></div>

<div data-id="11" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">11. INTERFACE TO <u class='defined-term'>CDCA</u> AND SUPPLIER METER REGISTRATION AGENT (<u class='defined-term'>SMRA</u>)</span></div>

<div data-id="12" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">12. TIMEKEEPING</span></div>

<div data-id="13" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">13. EXCEPTION HANDLING</span></div>

<div data-id="14" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">14. TRADING DISPUTES</span></div>

<div data-id="15" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">15. COMPLIANCE</span></div>

<div data-id="16" style="margin-left:0.59in;text-align:left;text-indent:-0.59in"><span lang="en-US">16. GC AND DC BREACH MONITORING</span></div>

<div data-id="appendix-a--primary-bm-unit-credit-assessment-importexport-capabilities" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">APPENDIX A – PRIMARY BM UNIT CREDIT ASSESSMENT IMPORT/EXPORT CAPABILITIES</div>

<div data-id="appendix-b--determination-of-pc-status-for-bm-units" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">APPENDIX B – DETERMINATION OF P/C STATUS FOR BM UNITS</div>

CONTENTS

Central Registration Agent Service Description V21.0

Defined Terms

Cross-references