TS 33.126 – Lawful Interception Requirements
3GPP TS 33.126 is the 3GPP Technical Specification for Lawful Interception Requirements. It is published in 5 releases (Rel-15 to Rel-19); the latest version is 19.3.0 in Rel-19.
Specifies Stage 1 requirements for Lawful Interception in 3GPP networks, covering interception lifecycle, definitions, and jurisdiction-specific needs.
Releases and versions of TS 33.126
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.3.0 | Read · Download (3GPP) |
| Rel-18 | 18.2.0 | Read · Download (3GPP) |
| Rel-17 | 17.4.0 | Read · Download (3GPP) |
| Rel-16 | 16.5.0 | Read · Download (3GPP) |
| Rel-15 | 15.2.0 | Read · Download (3GPP) |
Scope of TS 33.126
Category: Security (Lawful Interception). Technology generation: Multi-Gen. Network layer: Security.
Who should read this specification?
- Network operators
- Regulators and standards bodies
Implementation notes
Complexity level: Advanced. Implementation difficulty: High.
Key technologies
Specifications referenced by TS 33.126
Specifications that reference TS 33.126
- TS 23.501 5G System Architecture
- TS 23.316 Wireless and wireline convergence access support
- TS 33.106 Lawful Interception Requirements (Pre-Rel-15)
- TS 33.108 LI Handover Interface Specification
- TS 33.127 Lawful Interception Architecture
- TS 33.128 Lawful Interception Protocols and Procedures
- TR 22.926 Guidelines for Extraterritorial 5G Systems
- TR 33.928 LI ADMF Provisioning Logic for LI Functions
- TR 33.737 Technical Report on AKMA Roaming and Authentication Proxy
Other specifications in the 33 series
- TS 33.110 UICC-Terminal Key Establishment
- TS 33.116 Security Assurance Specification for MME
- TS 33.117 Catalogue of Security Requirements and Tests
- TS 33.122 CAPIF Security Architecture Specification
- TS 33.127 Lawful Interception Architecture
- TS 33.128 Lawful Interception Protocols and Procedures
- TS 33.141 Security for Presence Service (Ut reference point)
- TS 33.163 Battery Efficient Security for Low Throughput MTC
Related glossary terms
Related topics
Related technologies
Frequently asked questions
What is 3GPP TS 33.126?
3GPP TS 33.126 is the 3GPP Technical Specification for Lawful Interception Requirements. Specifies Stage 1 requirements for Lawful Interception in 3GPP networks, covering interception lifecycle, definitions, and jurisdiction-specific needs.
Which 3GPP releases include TS 33.126?
TS 33.126 is published in 5 releases, from Rel-15 to Rel-19. The latest version on 3GPP Explorer is 19.3.0 (Rel-19).
What category does TS 33.126 belong to?
TS 33.126 belongs to the Security (Lawful Interception) category of 3GPP specifications. It applies to Multi-Gen networks.
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