12.0

<div data-id="section-a-1-1.1" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">1.1 Introduction</div>

<div data-id="section-a-1-1.2" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">1.2 Parties</div>

<div data-id="section-a-1-1.3" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">1.3 Participation capacities</div>

<div data-id="section-a-1-1.4" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">1.4 <u class='defined-term'>Energy Account</u>s</div>

<div data-id="section-a-1-1.4A" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">1.4A Virtual Balancing Accounts</div>

<div data-id="section-a-1" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">1. GENERAL</div>

<div data-id="section-a-2-2.1" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2.1 Admission of new Parties</div>

<div data-id="section-a-2-2.2" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2.2 Accession Procedure</div>

<div data-id="section-a-2-2.3" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2.3 Disputes as to admission</div>

<div data-id="section-a-2-2.4" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2.4 Accession</div>

<div data-id="section-a-2-2.5" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2.5 Application fee</div>

<html><head></head><body><div data-id="section-a-2-2.6" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2.6 Withdrawal of a <u class="defined-term">Party</u> which does not commence trading</div></body></html>

<div data-id="section-a-2-2.7" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2.7 Novation Procedure</div>

<div data-id="section-a-2" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2. ACCESSION</div>

<html><head></head><body><div data-id="section-a-3-3.1" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">3.1 <u class="defined-term"><u class="defined-term">Party</u> Details</u></div></body></html>

<html><head></head><body><div data-id="section-a-3-3.2" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">3.2 Provision of <u class="defined-term"><u class="defined-term">Party</u> Details</u> to BSCCo</div></body></html>

<div data-id="section-a-3-3.3" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">3.3 Role of BSCCo</div>

<div data-id="section-a-3" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">3. PARTY DETAILS AND PROVISION OF INFORMATION TO BSCCo</div>

<div data-id="section-a-4-4.1" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4.1 Registration requirements</div>

<html><head></head><body><div data-id="section-a-4-4.2" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4.2 <u class="defined-term"><u class="defined-term">Party</u> Registration Data</u></div></body></html>

<div data-id="section-a-4-4.3" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4.3 Initial registration in CRS</div>

<html><head></head><body><div data-id="section-a-4-4.4" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4.4 Changes to the <u class="defined-term"><u class="defined-term">Party</u> Registration Data</u></div></body></html>

<div data-id="section-a-4-4.5" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4.5 General provisions</div>

<div data-id="section-a-4" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4. PARTY REGISTRATION</div>

<div data-id="section-a-5-5.1" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">5.1 Withdrawal</div>

<div data-id="section-a-5-5.2" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">5.2 Expulsion</div>

<div data-id="section-a-5-5.3" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">5.3 General provisions</div>

<div data-id="annex-a-1" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">ANNEX A-1</div>

<div data-id="amendment-record--section-a" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">AMENDMENT RECORD – SECTION A</div>

<div data-id="section-a" style="text-align:center">SECTION A: PARTIES AND PARTICIPATION</div>

CONTENTS

BSC Section A: Parties and Participation V12.0

Defined Terms

Cross-references