<div data-id="1-1.1">1.1 Background</div>

<div data-id="1-1.2">1.2 Purpose of this Document</div>

<div data-id="1-1.3">1.3 ISD Format</div>

<html><head></head><body><div data-id="1-1.4">1.4 <u class="defined-term"><u class="defined-term">Code</u> <u class="defined-term">Subsidiary</u> Document</u>ation</div></body></html>

<div data-id="2">2 ACRONYMS AND DEFINITIONS</div>

<html><head></head><body><div data-id="3-3.1">3.1 ISD Entity 1 – <u class="defined-term">Market Participant</u> Organisation</div></body></html>

<html><head></head><body><div data-id="3-3.2">3.2 ISD Entity 2 – GSP <u class="defined-term">Licensed <u class="defined-term"><u class="defined-term">Distribution <u class="defined-term">System</u></u> Operator</u></u></div></body></html>

<div data-id="3-3.3">3.3 ISD Entity 4 – SMR Agent Appointment</div>

<div data-id="3-3.4">3.4 ISD Entity 17 – DUoS Tariff ID</div>

<html><head></head><body><div data-id="3-3.5">3.5 ISD Entity 18 – <u class="defined-term">GSP Group</u></div></body></html>

<html><head></head><body><div data-id="3-3.6">3.6 ISD Entity 45 - <u class="defined-term">Market Participant</u> Role</div></body></html>

<html><head></head><body><div data-id="3-3.7">3.7 ISD Entity 61 - <u class="defined-term">Base <u class="defined-term">BM Unit</u></u> for <u class="defined-term"><u class="defined-term">Supplier</u></u> in <u class="defined-term">GSP Group</u></div></body></html>

<html><head></head><body><div data-id="3-3.8">3.8 ISD Entity M3 - <u class="defined-term"><u class="defined-term">Line Loss Factor</u></u> <u class="defined-term">Identifier</u></div></body></html>

<html><head></head><body><div data-id="3-3.9">3.9 ISD Entity M7 - Valid <u class="defined-term"><u class="defined-term">Market Segment</u></u>/ Connection/ <u class="defined-term">Meter</u> Type/ <u class="defined-term">Meter</u> Group</div></body></html>

<html><head></head><body><div data-id="3-3.10">3.10 ISD Entity M8 - Valid <u class="defined-term"><u class="defined-term">Market Segment</u></u>/ <u class="defined-term">Meter</u>ing Service Mapping</div></body></html>

<html><head></head><body><div data-id="3-3.11">3.11 ISD Entity M9 - UMS Charge <u class="defined-term">Code</u>s</div></body></html>

<html><head></head><body><div data-id="3-3.12">3.12 ISD Entity M10 - UMS Manufacturer Equipment LED Range Charge <u class="defined-term">Code</u>s</div></body></html>

<div data-id="3-3.13">3.13 ISD Entity M11 - UMS Switch Regimes</div>

<div data-id="3-3.14">3.14 ISD Entity M12 - UMS Variable Power Switch Regimes</div>

<html><head></head><body><div data-id="3-3.15">3.15 ISD Entity M16 - <u class="defined-term">Market Participant</u> to DIP Participant Mapping</div></body></html>

<div data-id="3-3.16">3.16 ISD Entity M18 – DIP Market Roles</div>

<html><head></head><body><div data-id="3-3.17">3.17 ISD Entity ID M20 - SVA <u class="defined-term"><u class="defined-term">Line Loss Factor</u></u>s</div></body></html>

<html><head></head><body><div data-id="3-3.18">3.18 ISD Entity ID M21 - CVA <u class="defined-term"><u class="defined-term">Line Loss Factor</u></u>s</div></body></html>

<html><head></head><body><div data-id="3-3.19">3.19 ISD Entities Changed by the <u class="defined-term">BSCCo</u>.</div></body></html>

<html><head></head><body><div data-id="3-3.20">3.20 ISD Entities Changed by the <u class="defined-term">SVAA</u></div></body></html>

<div data-id="3-3.21">3.21 Rarely Changed ISD Entities</div>

<div data-id="3">3 ISD DATA ENTITIES<sup><a href="#footnote-2" id="footnote-ref-2">[1]</a></sup></div>

<div data-id="4-4.1">4.1 Introduction</div>

<div data-id="4-4.2">4.2 Entity Diagram</div>

<div data-id="4">4 ISD ENTITY DIAGRAM</div>

<div data-id="appendix-a">Appendix A: Glossary</div>

CONTENTS

BSCP707 Appendix 2: ISD Change Request Entity Validation V2.0

Defined Terms

Cross-references