The Max Planck Society has established a new agreement with the Royal Society which allows authors to publish open access in all Royal Society journals under a Creative Commons license (CC-BY); under the agreement, the article processing charges will be paid centrally by the MPS.

It also covers read access to all journals published by the Royal Society.

To publish open access without having to pay Article Publication Charges (APCs), the following criteria must be met:

• The article is submitted between Jan 1, 2021 and Dec 31, 2023.
• A Max Planck author must be the corresponding author of the article.
• The author is affiliated with a Max Planck Institute and publishes under this affiliation – the Max Planck Institute must be stated in the article. A Max Planck email address should be used (if possible).
• All article types are eligible except letters to the editor, corrections, retractions.