---
id: "launch-phase-extension"
kind: "glossary-term"
title: "launch phase extension"
language: "en"
category: "Transfers and EPP"
updated: "2026-10-04T14:01:23Z"
canonical: "https://tldlog.com/glossary/launch-phase-extension/"
translations:
  es: "https://tldlog.com/es/glosario/extension-fase-lanzamiento/"
  de: "https://tldlog.com/de/glossar/launch-phase-extension/"
  fr: "https://tldlog.com/fr/glossaire/extension-phase-lancement/"
  it: "https://tldlog.com/it/glossario/estensione-fasi-lancio/"
  pt-BR: "https://tldlog.com/pt/glossario/extensao-fase-lancamento/"
  ru: "https://tldlog.com/ru/glossariy/rasshirenie-etapov-zapuska/"
  zh-Hans: "https://tldlog.com/zh/cihui/qidong-jieduan-kuozhan/"
---

# launch phase extension

The EPP add-on used while a new TLD is opening. It lets registrars send applications or registrations for a given phase, such as sunrise, together with trademark proof or the accepted claims notice. It is defined in RFC 8334.

## related terms

- [EPP extension](https://tldlog.com/glossary/epp-extension/)
- [launch phase](https://tldlog.com/glossary/launch-phase/)
- [sunrise](https://tldlog.com/glossary/sunrise/)
- [trademark claims](https://tldlog.com/glossary/trademark-claims/)
- [TMCH](https://tldlog.com/glossary/tmch/)