Biosafety Level 4 labs in 30 countries have no standardized inspection regime

There are approximately 60 BSL-4 labs worldwide (handling the most dangerous pathogens) across 30 countries, but no international body has authority to inspect them. Each country self-certifies its labs' biosafety compliance. The US CDC inspects domestic BSL-4 labs, but labs in China, Russia, India, and elsewhere operate under whatever standards their national government sets. After the COVID-19 origin controversy, calls for an international inspection regime have gone nowhere. This persists because biosafety is considered a matter of national sovereignty, and countries operating BSL-4 labs (often for biodefense research they want to keep secret) refuse external inspection for the same reason they refuse nuclear inspections -- sovereignty and intelligence protection.