What are the rules to enter Luxembourg country from an EU Member State or Schengen Associated country?

Luxembourg is accepting "EU Digital COVID certificates" (EUDCC) since 1 July 2021. 

Holders of EUDCC will be allowed to enter Luxembourg, without being subject to further restrictions (testing or quarantine), at the condition that their certificate contains either: 

• Vaccination certificate
• Recovery certificate
• Negative COVID-19 test certificate

Accepted vaccines: BioNTech/Pfizer / Moderna / AstraZeneca (Vaxzevria) / Johnson&Johnson (Janssen)

For more info: reopen.europa.eu/en/map/LUX/7001?