I don't believe he is bound by this, or maybe wouldn't care if he was. https://planetaryprotection.nasa.gov/about

https://planetaryprotection.nasa.gov/intpolicy/

Yeah, I've been intrigued by this cognitive dissonance for a while. Are we going to visit, or would contaminating the planet be a disaster for science and our understanding of the nature of life?

god bless anyone dumb enough to believe him