Without question, it was the FAA. Click the link and read the document. “At the request of the FAA, SpaceX conducted a literature review of ESA-listed endanger

Without question, it was the FAA. Click the link and read the document. “At the request of the FAA, SpaceX conducted a literature review of ESA-listed endangered and threatened species with known or presumed distributions in the study area that may be affected by the proposed March 2024 13 FAA Office of Commercial Space Transportation Tiered Environmental Assessment for SpaceX Starship Indian Ocean Landings activities.” It goes on to explicitly reference the (essentially zero) risk of impacting and killing and endangered-species-listed marine mammal on splashdown. It is the interaction described above. The Endangered Species Act is not a requirement from another agency. It’s the law. Everyone has to follow it.