There's this, but I don't see much discussion about it: https://www.spj.org/ethicscode.asp

It's fine to have a standards committee with the power of suggestion. However something like that could just as easily become something for countries with dictators to use to attempt to silence reporters who they don't like so I suspect that's why there's no "governing body" just some organizations who recommend best practices. One man's "standards" is another one's opportunity to cull rebellious journalists.

I don't, but the Canadian Association of Journalists and the Canadian Journalism Foundation both exist.

CAJ particularly has done some good explanations in the past (though I haven't read it since I was forced to, in university!) https://caj.ca/Ethics