International codes of conduct are important, but grass-roots efforts are the key to embedding research integrity.
When it comes to research integrity, scientists use the language of aspiration, whereas policymakers talk about hard rules and enforcement.
An excellent discussion about a useful approach institutions can take to research integrity. Also see the discussion about The Embassy of Good Science) discussed here: https://www.embassy.science/
The need for a unified approach is slowly gaining recognition. The World Science Forum, a biennial meeting of researchers and policymakers from different countries, issued a declaration at its November conference in Budapest that called for, among other things, “harmonisation and enforcement of standards of conduct of scientific research across borders and across public and private research”. The declaration also supported processes by which scientists “can report suspected research misconduct and other irresponsible research practices, without fear of reprisal”, and it urged clearer procedures for responding to such concerns.