- Acceptance Testing
- Access Control Broker
- ACB
- Accession Agreement
- Activation Data
- Additional Interface Testing Objective
- Additional Release Services
- Additional SR Tests
- Additional SRT Objective
- Additional Systems Integration Testing Objective
- Additional SIT Objective
- Adoption Criteria
- Affected Party
- Affiliate
- Agency for the Co-operation of Energy Regulators
- Agreement for Services
- ALCS/HCALCS Labels List
- ALCS/HCALCS
- Allowed Revenue
- Alt HAN Arrangements
- Alt HAN Charges
- Alt HAN Forum
- Alt HAN Services
- Alternate
- Alternative Proposal
- Alternative Solution
- Anomalous Event
- Anomaly Detection Threshold
- ADT
- Applicant
- Application Association
- Application Fee
- Application Form
- Application Guidance
- Application Server
- Appropriate Permission
- Appropriate Standard
- Approved Budget
- Approved Finance Party
- Articles
- Assurance Certificate
- Assurance Scheme
- Audit Log
- Authentication Key
- Authorised Activity
- Authorised Business of the Licensee
- Authorised Responsible Officer
- ARO
- Authorised Subscriber
- Authority
- Authority Determined Modification
- Authority-initiated Modification
- Authority-Led Variations
- Authority Revocation List
- ARL
- Auxiliary Load Control
- ALC
- Balancing and Settlement Code
- BSC
- Bank Guarantee
- Batched Certificate Signing Request
- BCDR Procedure
- Bilateral Agreement
- Board
- British Electrotechnical and Allied Manufacturers Association
- BEAMA
- Business Architecture
- Business Architecture Document
- BAD
- Business Continuity and Disaster Recovery Test
- Business Continuity and Disaster Recovery Test Schedule
- Cash Deposit
- Central Delivery Body
- Central Products List
- CPL
- Central Region
- Certificate
- Certificate Policy
- Certificate Profile
- Certificate Re-Key
- Certificate Revocation List
- Certificate Revocation Request
- Certificate Signing Request
- CSR
- Certified Products List
- CESG
- CH Defect
- CH Handover Support Materials
- CH Installation and Maintenance Support Materials
- CH Order Management System
- CH Support Materials
- Change Board
- Change Board Member
- Change Sub-Committee
- CSC
- Charges
- Charging Group
- Charging Methodology
- Charging Methodology for Service Charges
- Charging Statement
- Charging Statement for Service Charges
- CHECK
- Check Cryptographic Protection
- CHF Identifier
- Citizens Advice
- Citizens Advice Scotland
- Code
- Code Administrator
- Code Change and Development Group
- CCDG
- Code Performance Measure
- Command
- Commercial Activities
- Commissioned
- Common Test Scenarios Document
- CTSD
- Communication Hub
- Communication Services
- Communications Contract
- Communications-Electronics Security Group CHECK
- Communications-Electronics Security Group Listed Advisor Scheme
- CLAS
- Communications-Electronics Security Group Tailored Assurance Service
- CTAS
- Communications Hub
- CH
- Communications Hub Auxiliary Equipment
- Communications Hub Batch Fault
- Communications Hub Charging Group
- Communications Hub Defect
- Communications Hub Delivery and Returns
- Communications Hub Finance Acceleration Event
- Communications Hub Finance Costs
- Communications Hub Finance Facility
- Communications Hub Function
- CHF
- Communications Hub Handover Support Materials
- CHHSM
- Communications Hub Hot Shoe
- Communications Hub Installation and Maintenance Support Materials
- CHISM
- Communications Hub Order Management System
- Communications Hub Ordering
- Communications Hub Ordering System
- CHOS
- Communications Hub Products
- Communications Hub Query
- Communications Hub Services
- Communications Hub Support Materials
- CHSM
- Communications Hub Supporting Information
- Communications Hub Technical Specification
- Communications Service Provider
- CSP
- Communications Service Provider North
- CSPN
- Communications Transition Group
- CTG
- Competent Authority
- Competition and Markets Authority
- Compliance Statement
- Compliant Party
- Conditions
- Confidential Information
- Confirm Validity
- Connection Period
- Consignment
- Consumer Access Device
- CAD
- Consumer Energy Display Industry Group
- CEDIG
- Consumer Member
- Consumer Prices Index
- Consumption Data
- Contingency Key Pair
- Contingency Private Key
- Contingency Public Key
- Contractual Bandwidth
- Coordinated Universal Time
- UTC
- Core Communication Services
- CoS Party
- Countersigned S1SP Alert
- Countersigned Service Request
- Countersigned SMETS1 Alert
- Countersigned SMETS1 Response
- Coverage Area
- CPA Assurance Maintenance Plan
- CPA Certificate Remedial Plan
- CPA Security Characteristics
- CPL Requirements Document
- Credit Support
- CREST
- Critical Command
- Critical Service Request
- Critical Service Response
- Cross Functional Design Authority
- CFDA
- Cryptographic Credential Token
- Cryptographic Hash Function
- Cryptographic Module
- Cryptographic Processing
- CSV file
- Daily Testing Issue Report
- Data
- Data and Communications Company
- DCC
- Data Communications Company
- Data Communications Company Alert
- Data Communications Company Gateway Bandwidth Option
- Data Communications Company Gateway Connection
- Data Communications Company Gateway Connection Code of Connection
- Data Communications Company Gateway Equipment
- Data Communications Company Gateway HV Connection
- Data Communications Company Gateway LV Connection
- Data Communications Company Gateway Party
- Data Communications Company ID
- Data Communications Company Independent Security Assessment Arrangements
- Data Communications Company Independent Security Assurance Service Provider
- Data Communications Company Individual Live System
- Data Communications Company Interfaces
- Data Communications Company Internal Security Controls
- Data Communications Company Internal Systems
- Data Communications Company Key Infrastructure Authorised Subscriber
- Data Communications Company Key Infrastructure Authority Revocation List
- DCCKI ARL
- Data Communications Company Key Infrastructure Certificate (DCCKI)
- DCCKI
- Data Communications Company Key Infrastructure Certificate
- Data Communications Company Key Infrastructure Certificate Revocation List
- DCCKI CRL
- Data Communications Company Key Infrastructure Certificate Signing Request
- Data Communications Company Key Infrastructure Certification Authority
- Data Communications Company Key Infrastructure Certification Practice Statement
- Data Communications Company Key Infrastructure Code of Connection
- Data Communications Company Key Infrastructure Eligible Subscriber
- Data Communications Company Key Infrastructure Interface Design Specification
- Data Communications Company Key Infrastructure Participants
- Data Communications Company Key Infrastructure Registration Authority
- Data Communications Company Key Infrastructure Registration Authority Policies and Procedures
- DCCKI RAPP
- Data Communications Company Key Infrastructure Relying Party
- Data Communications Company Key Infrastructure Repository Code of Connection
- Data Communications Company Key Infrastructure Repository Interface Design Specification
- Data Communications Company Key Infrastructure Repository Service
- Data Communications Company Key Infrastructure Subscriber
- Data Communications Company Licence
- Data Communications Company Member
- Data Communications Company Personnel
- Data Communications Company Security Assessment Report
- Data Communications Company Security Assessment Response
- Data Communications Company Service Provider
- Data Communications Company Service Provider Contract
- Data Communications Company Systems
- Data Communications Company Total System
- Data Communications Company User Interface
- Data Communications Company User Interface Services
- Data Communications Company User Interface Services Schedule
- Data Communications Company User Interface Specification
- DUIS
- Data Processor
- Data Protection Legislation
- Data Retention Policy
- Data Subject
- Data Subject Rights
- DCA Certificate
- DCA Personnel
- DCA Private Key
- DCA Public Key
- DCA Systems
- DCC Change Request
- CR
- DCC Key Infrastructure Authorised Subscriber
- DCC Key Infrastructure Authority Revocation List
- DCC Key Infrastructure Certificate
- DCC Preliminary Assessment
- DCC User Gateway Interface Design Specification
- DUGIDS
- DCC User Interface Specification
- DCO
- DCO
- Decommissioned
- Default Interest Rate
- Delivery Batch
- Delivery Issues Report Notification
- DIRN
- Delivery Window
- Denial of Service Event
- Deployed Products List
- Design Working Group
- DWG
- Designated Premises
- Device
- Device Alert
- Device and User System Tests
- Device Candidate Selection Engine
- DCSE
- Device Certificate
- Device Certificate Authority
- DCA
- Device Certificate Policy
- Device Certification Authority
- Device Certification Practice Statement
- Device CPS
- Device ID
- Device Integration Test Approach Document
- DITAD
- Device Log
- Device Model
- Device Model Combination
- DMC
- Device Type
- Digital Signature
- Direct Agreement
- Director
- Disaster
- Dispute
- Distribution Network Operators
- DNO
- DLMS User Association
- Domestic Energy Supplier
- Domestic Premises
- Draft Budget
- Dual Band Comms Hub
- DBCH
- Dual Band Communications Hub Configuration Tables
- DUIS XML Schema
- ECOS Migration Reporting Regime
- EMRR
- EII DCCKICA Certificate
- EII DCCKICA Certificate Revocation List
- EII DCCKICA CRL
- Elected Members
- Elective Charges
- Elective Communication Services
- ECS
- Electric Vehicle
- EV
- Electricity Act
- Electricity Distribution Licence
- Electricity Distributor
- Electricity Meter
- Electricity Network Party
- Electricity Smart Meter
- ESME
- Electricity Supplier Party
- Electricity Supply Licence
- Eligible Meter
- Eligible Party
- Eligible Product Combinations List
- EPCL
- Eligible User
- Eligible User Role
- Enabling Service Charges
- Enabling Services
- Enabling Works
- End-to-End Security Architecture
- End-to-End Smart Metering System
- End-to-End Technical Architecture
- End-to-End Testing
- Enduring Testing Approach Document
- Energy
- Energy Code
- Energy Consumer
- Energy Efficiency Services
- Energy Licence
- Energy Meter
- Energy Metering Services
- Energy Network Licence
- Energy Network Licensee
- Energy Networks
- Energy Networks Association
- ENA
- Energy Price Comparison Services
- Energy Registration Services
- Energy Supplier
- Energy Supply Licence
- Enrolment Service
- Equivalent Steps
- EU Regulations
- EUI-64 Compliant
- Event of Default
- Explicit Charges
- Export MPAN
- Export Supplier
- Expulsion from the SEC
- External Service Provider
- External Service Provider Contract
- Factory Acceptance Testing
- FAT
- Fast-Track Modifications
- File Signing Certificate
- File Signing Software
- Final Operating Capability
- FOC
- FIPS token
- Firmware Information Repository
- FIR
- Fixed Charges
- Follow-up Security Assessment
- Forum Sub-Group
- Full Privacy Assessment
- Full User Security Assessment
- FUSA
- Fundamental Service Capability
- Gas Act
- Gas Meter
- Gas Network Party
- Gas Proxy Function
- GPF
- Gas Smart Meter
- GSME
- Gas Supplier
- Gas Supplier Party
- Gas Supply Licence
- Gas Transporter
- Gas Transporter Licence
- GBCS Payload
- General Data Protection Regulation
- GDPR
- General SEC Objectives
- Good Industry Practice
- GPF Identifier
- Great Britain Companion Specification
- GBCS
- Greenhouse Gas Emissions
- Holding Company
- Home Area Network
- HAN
- Home Area Network Connected Auxiliary Load Control Switch.
- Home Area Network Connected Auxiliary Load Control Switch
- HCALCS
- Home Area Network Connected Auxiliary Load Control Switch Technical Specification
- Home Area Network Connected Auxiliary Load Control Switch
- Home Area Network Requirements
- Home Area Network Variants
- ICA Certificate
- ID Allocation Procedure
- IETF RFC 5280
- IHD Technical Specification
- IKI Authority Revocation List
- IKI ARL
- IKI Certificate
- IKI Certificate Policy
- IKI Certificate Revocation List
- IKI CRL
- IKI Certification Authority
- ICA
- IKI Certification Practice Statement
- IKI CPS
- IKI File Signing Certificate
- IKI File Signing Certification Authority
- Impact Assessments
- IA
- Implementation Managers Forum
- IMF
- Import Meter Point Administration Number
- Import MPAN
- Import Supplier
- In Home Display
- In Home Display
- IHD
- Incident
- Incident Management
- Incident Management Policy
- Incident Parties
- Independent S1SPKM Assurance Service Provider
- Independent Time Source
- Information
- Information Classification Scheme
- Information Commissioner
- Infrastructure Key Infrastructure
- IKI
- Initial Enrolment Code Amendments
- Initial Operating Capability
- IOC
- Installation Location
- Instruction
- Intellectual Property Rights
- Interface Testing
- IT
- Interoperability Checker Service
- Interoperability Data
- Intimate Communications Hub Interface Specifications
- ICHIS
- Inventory, Enrolment and Withdrawal Procedures
- Issue
- Issuing DCA
- Issuing DCA Authority
- Issuing DCA Certificate
- Issuing DCA Private Key
- Issuing DCA Public Key
- Issuing ICA
- Issuing ICA Certificate
- Issuing Organisation Certification Authority
- Issuing Organisation Certification Authority Certificate
- Issuing Organisation Certification Authority Private Key
- Issuing Organisation Certification Authority Public Key
- Key Escrow
- Key Pair
- Known Remote Party
- Large Supplier Party
- Laws and Directives
- Lead Supplier
- Legacy Procurement Contract
- Letter of Credit
- Liability
- Liability Event
- Liability Payment
- Liability Sum
- Licence
- Licence Application Process
- Licence Commencement Date
- Licence Term
- Licensee
- Local Command Services
- MA-S Registry Entry
- Maintenance
- Maintenance Validity Period
- Major Incident
- Major Security Incident
- Malicious Software
- Mandatory Business
- Mandatory Business Services
- Manufacturer
- Market Information Agreement
- Market Share Information
- Market-Wide Half Hourly Settlement
- MWHHS
- Master Registration Agreement
- MRA
- Material Risk
- Maximum Credit Value
- Maximum Physical Bandwidth
- Measuring Instruments Regulations
- MIR
- Mesh Communications Hub
- Message Code
- Message Mapping Catalogue
- MMC
- Meter Operator
- MOP
- Meter Point Administration Number
- MPAN
- Meter Point Reference Number
- MPRN
- Metering Equipment Managers
- MEMs
- Metering Point
- Middle Operating Capability
- MOC
- Migration Device and User System Testing
- MDUST
- Minimal Services
- Minimum Service Level
- Minimum SMETS1 Services
- Modification Proposal
- Modification Register
- Modification Report
- Modification Report Consultation
- Monthly Service Metric
- Monthly Service Threshold
- Morrison's Data Services
- MDS
- National Cyber Security Centre
- NCSC
- National Fixed Revenue
- Network Enhancement Plan
- Network Party
- Network Time
- Never
- New Party
- NGI Change of Credentials Request
- Non-Critical Service Request
- Non-Critical Service Response
- Non-Default Interest Rate
- Non-Device Service Request
- Non-Domestic Premises
- Non-Gateway Supplier
- Non-Gateway Interface
- Non-Gateway Interface Specification
- NGIS
- Non-Gateway Supplier
- Non-Gateway Supplier Systems
- North Region
- Notice
- Notification
- Object Identifier
- OID
- Objective
- OCA Certificate
- OMS Account
- OMS Order Reference
- On-Demand Services
- Operational Performance Regime
- OPR
- Operations Group
- OPSG
- OPR Exceptional Event
- OPR Reporting
- Order Management System
- OMS
- Organisation Authority Revocation List
- Organisation ARL
- Organisation Authority Revocation List
- Organisation Certificate
- Organisation Certificate Policy
- Organisation Certificate Revocation List
- Organisation CRL
- Organisation Certification Authority
- OCA
- Organisation Certification Authority Certificate
- Organisation Certification Authority Key
- Organisation Certification Authority Private Key
- Organisation Certification Authority Systems
- Organisation Certification Practice Statement
- Organisation CPS
- Original Party
- OTA Header
- Other Enabling Services
- Other SEC Party
- Other User
- Overall Design Advisory Group
- ODAG
- Panel
- Panel Chair
- Panel Decision
- Panel Finance and Contracts Sub-Group
- PFCG
- Panel Member
- Panel Objectives
- Parent Company Guarantee
- Parties
- Party
- Party Category
- Party Details
- Party ID
- Party Signifier
- Path 1 Modification
- Path 2 Modification
- Path 3 Modification
- Pay as You Go
- PAYG
- Performance Measurement Methodology
- Performance Measurement Period
- Performance Measures
- Permitted Business
- Permitted Business Services
- Permitted Purpose
- Personal Data
- Personnel Authentication Certificate
- Personnel Authentication Certificate Application
- Physical Device Type
- Planned Maintenance
- Policy
- Policy Board
- PB
- PPM Installation End Date
- Pre Integration Testing
- PIT
- Prepayment Meter Interface Device
- PPMID
- Radio Network Interface
- RNI
- Random Sample Privacy Assessment
- Recoverable Costs
- Recovery Certificate
- Recovery Costs
- Recovery Event
- Recovery Key Pair
- Recovery Private Key
- Recovery Procedure
- Refinement Process
- Region
- Regional Communications Fixed Revenue
- Registered Supplier Agent
- RSA
- Registration Authority
- Registration Authority Manager / Data Communications Company Key Infrastructure RAPP
- Registration Authority Personnel
- Registration Authority Policies and Procedures
- RAPP
- Registration Data
- Registration Data Incident Management Policy
- Registration Data Interface
- Registration Data Interface Code of Connection
- Registration Data Interface Documents
- Registration Data Provider
- RDP
- Registration Data Provider Systems
- Regulatory Accounts
- Regulatory Year
- Related Undertaking
- Release Management
- Relevant Business Assets
- Relevant Device
- Relevant Instruments
- Relevant Party
- Relevant Private Key
- Relevant Subscriber
- Relying Party
- Relying Party Agreement
- RPA
- Remote Party
- Remote Party Role
- Remote Party Role Code
- Replacement Meter
- Replay
- Report Phase
- Reported List of Service Provider Performance Measures
- Response
- Responsible Supplier
- Restricted Communication Service
- Retail Energy Code
- REC
- Retiring Shareholder
- Risk Treatment Plan
- Root DCA
- Root DCA Certificate
- Root DCA Private Key
- Root DCCKICA Certificate
- Root Device Certification Authority (or Root DCA)
- Root ICA
- Root ICA Certificate
- Root Organisation Certification Authority Certificate
- Root Organisation Certification Authority
- Root Organisation Certification Authority Private Key
- S1SPKI Certificate Policy
- S1SPKI CPS
- S1SPKI Certification PracticeStatement
- S1SPKI Registration Authority Policies and Procedures
- S1SPKI RAPP
- S1SPKM Compliance Policy
- S1SPKM Document Set
- S1SPKM SEC Documents
- SEC Arrangements
- SEC Commencement Date
- SEC Modification Arrangements
- SEC Objectives
- SEC Panel
- SEC Parties
- SEC Release
- SEC Subsidiary Documents
- SEC Variation Testing Approach Documents
- SECCo Chair
- SECCo Ltd
- SECCo Secretary
- Secret Key Material
- Secretariat
- Secretary of State
- SoS
- Secure
- Security Check
- SC
- Security Controls Framework
- Security Obligations and Assurance Arrangements
- Security Related Functionality
- Security Requirements
- Security Risk Assessment
- Security Self-Assessment
- SSA
- Self-Governance Modification
- Self-Service Interface
- SSI
- Self-Service Interface Access Control Specification
- Self-Service Interface Code of Connection
- Self-Service Interface Design Specification
- Separate
- Service Charges
- Service Desk
- Service Level
- Service Level Requirements
- Service Management Service Request
- Service Provider Performance Measures
- Service Reference Variant
- Service Request
- Service Request Processing Document
- Service Response
- Services
- Shared Resource Provider
- Shared Resource User
- Shared Resources
- Shared Secret
- Shareholder
- Signed Pre-Command
- Significant Code Review
- Significant Code Review Phase
- SCR Phase
- Significant Metallic Obstruction
- SIMCH Aerial
- Single Band Communication Hubs
- SBCH.s
- Smart Metering Wide Area Network (SM WAN)
- SM WAN Coverage Database
- Small Supplier Party
- Smart Card Token
- Smart Energy Code
- SEC
- Smart Energy Code Company
- Smart Meter
- Smart Meter Delivery Group
- SMDG
- Smart Meter Key Infrastructure
- SMKI
- Smart Meter Key Infrastructure and Repository Testing
- SRT
- Smart Meter Key Infrastructure Code of Connection
- SMKI CoCo
- Smart Meter Key Infrastructure Document Set
- Smart Meter Key Infrastructure Interface Design Specification
- Smart Meter Key Infrastructure Participants
- Smart Meter Key Infrastructure Policy Management Authority
- SMKI PMA
- Smart Metering Delivery Group
- SMDG
- Smart Metering Equipment Technical Specifications
- Smart Metering Equipment Technical Specifications 1
- SMETS1
- Smart Metering Implementation Programme
- SMIP
- Smart Metering Inventory
- SMI
- Smart Metering Key Infrastructure
- Smart Metering Steering Group
- SMSG
- Smart Metering System
- Smart Mode
- SMETS 1 PPMID
- SMETS1 Alert
- SMETS1 Communication Hub
- SMETS1 CH
- SMETS1 Critical Service Request
- SMETS1 Device
- SMETS1 Device Model
- SMETS1 Eligibility User Entry Process Testing
- SMETS1 Eligibility UEPT
- SMETS1 Eligible Product Combinations
- SMETS1 ESME
- SMETS1 ESMS
- SMETS1 GPF
- SMETS1 GSME
- SMETS1 GSMS
- SMETS1 IHD
- SMETS1 Live Services Criteria
- LSC
- SMETS1 Meter
- SMETS1 Pending Product Combinations
- SMETS1 Pending Product Combinations Tests
- SMETS1 Response
- SMETS1 Service Provider
- SMETS1 Service Provider PKI
- S1SPKI
- SMETS1 Service Request
- SMETS1 Services
- SMETS1 SM WAN
- SMETS1 Smart Metering System
- SMETS1 SMS
- SMETS1 SMSO
- SMETS1 Supported Service Request
- SMETS1 Supporting Requirements
- SMETS1 Symmetric Key
- SMETS1 Symmetric Key Arrangement
- SMETS2+ Device
- SMETS2+ Device Model
- SMETS2+ SM WAN
- SMKI and Repository Entry Process Tests
- SREPT
- SMKI and Repository Test Scenario Document
- SMKI and Repository Testing
- SMKI Code of Connection
- SMKI Document Set
- SMKI Interface Design Specification
- SMKI Participants
- SMKI Recovery Key Guidance
- SMKI Recovery Procedure
- SMKI Registration Authority Policies and Procedures
- SMKI RAPP
- SMKI Repository Code of Connection
- SMKI Repository Interface Design Specification
- SMKI SEC Documents
- SMKI Specialist
- SOC2
- Solution Architecture Information
- South Region
- Special Installation Mesh Communications Hub
- Special Second-Fuel Installation
- Special WAN-Variant Installation
- Specimen Accession Agreement
- Specimen Bilateral Agreement
- Specimen Enabling Services Agreement
- SSI Baseline Requirements Document
- Stage 1 Assurance Report
- Statement of Service Exemptions
- Sub-Committee
- Sub-Processor
- Sub-Version
- Subject
- Subscriber
- Subscriber Obligations
- Subscribing Shareholders
- Subsidiary
- Successfully Executed
- Supplementary Remote Party
- Supplier of Last Resort
- SoLR
- Supplier Party
- Supply Meter Point
- Supply Meter Point Reference Number
- Supply Number
- Supply Point Administration Agreement
- SPAA
- Supply Sensitive Check
- Supply Sensitive Service Request
- Symmetric Key
- System
- System Development Lifecycle
- Systems Integration Testing
- SIT
- Systems Integrator
- SI
- Tailored Assurance Service
- Target Availability Period
- Target Service Level
- TCH Participant
- Technical and Business Design Group
- TBDG
- Technical Architecture and Business Architecture Sub-Committee
- Technical Architecture Document
- TAD
- Technical Code Specifications
- Technical Specification Issue Resolution Subgroup
- TSIRS
- Technical Specifications
- Technical Specifications (TS) Applicability Tables
- Terms in Respect of Grant
- Terms in Respect of Revocation
- Test Certificate
- Test Communications Hub
- Test Communications Hub Participant
- TCH Participant
- Test Completion Certificate
- Test Completion Report
- Test Data
- Test Data Plan
- Test Design and Execution Group
- TDEG
- Test Execution Dashboard
- Test Management Tool
- Test Plan
- Test Readiness Report
- Test Repository
- Test Result
- Test Schedule
- Test Script
- Test Smart Meter Key Infrastructure Repository Services
- Test Smart Meter Key Infrastructure Services
- Test Stage
- Test Stubs
- Testing Advisory Group
- TAG
- Testing Issue
- Testing Objectives
- Testing Participant
- Threshold Anomaly Detection
- Threshold Anomaly Detection Procedures
- Time-Stamping
- Time-Stamping Authority
- Total Organic Carbon
- TOC
- Transition and Migration Approach Document
- TMAD
- Transition to Operations
- TTO
- Transitional Change of Supplier
- TCoS
- Transport Layer Security
- TS Applicability Tables
- Type 1 Device
- Type 2 Device
- Type 2 Device (Other)
- Ultimate Controller
- Unambiguous Consent
- Uniform Network Code
- UNC
- Unique Property Reference Number
- UPRN
- Unique Transaction Reference Number
- UTRN
- Unknown Remote Party
- Unplanned Maintenance
- Unrecovered Bad Debt Payment
- Unsecured Credit Limit
- Upgrade Image
- Urgent DCC Assessment
- User
- User Competent Independent Organisation
- User CIO
- User Entry Process
- UEP
- User Entry Process Tests
- User ID
- User Integration Testing and the Mass Rollout Period
- UITMR Period
- User Personnel
- User Privacy Self-Assessment
- User Privacy Self-Assessment Report
- User Role
- User Security Assessment
- User Security Assessment Methodology
- User Security Assessment Report
- User Security Assessment Response
- User Security Self-Assessment
- User Systems
- Valid Communications Hub Order
- Validity Period
- Value Added Tax
- VAT
- Value at Risk
- Variant Communication Hubs
- Verification User Security Assessment
- VUSA
- Verify
- Version
- Volume Scenarios
- WAN Variants
- Website
- Wide Area Network (WAN) Provider
- Withdrawal from the SEC
- Working Day
- WD
- Working Hours
- Writing
- Zigbee Alliance