The Code of Conduct for the FRONTIERS Science Journalism in Residence Program outlines the responsibilities of both host institutions and participating journalists to ensure collaborative, ethical, and transparent engagement. Host institutions commit to providing journalists with access to resources, researchers, and facilities while preserving journalistic independence and supporting ethical science communication. Journalists pledge to uphold accuracy, transparency, and fairness in reporting, respect institutional norms and safety guidelines, and promote responsible public understanding of science. Both parties are encouraged to engage in mutual learning and resolve disputes constructively, fostering an environment of respect and collaboration. Disclaimer:Funded by the European Union (EU) through the European Research Council (ERC) grant FRONTIERS, nr 101121863. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the EU or the ERC Executive Agency. Neither the EU nor the granting authority can be held responsible for them. The subgrants are not given by the EU or the ERC.