• The European Data Protection Board and European Data Protection Supervisor released a joint opinion on a proposal for Digital Green Certificates to "facilitate free movement during the COVID-19 pandemic."
• Data protection authorities for federal and state governments in Germany called for a temporary federal law related to the use of vaccine passports.
• Singapore will start to accept travelers who present digital certificates for COVID-19 tests and vaccines in May, ZDNet reports.
• ZDNet also reports on the potential privacy concerns surrounding the use of technology to fight COVID-19 raised by an academic paper published in the Journal of the Royal Society of New Zealand.

Editor's note: IAPP Staff Writer Jennifer Bryant reported for The Privacy Advisor on the privacy considerations surrounding vaccine passports.