Agreed. The USPS also provides address verification / normalization services. [1] Though I'm honestly not sure those are as comprehensive as certain other coun

Agreed. The USPS also provides address verification / normalization services. [1] Though I'm honestly not sure those are as comprehensive as certain other countries, as you mentioned. Germany has the Meldepflicht[2] for instance, which requires all residents to register their address with an Einwohnermeldeamt, and I'm pretty sure that's validated against a nationwide database. Granted, it's not granular enough pinpoint exact apartments (since apartments aren't generally numbered here), but still, I imagine that kind of thing would make it pretty difficult to bypass a law like Amsterdam's 60 day rule. [1] https://www.usps.com/nationalpremieraccounts/manageprocessandaddress.htm https://www.usps.com/nationalpremieraccounts/manageprocessan... [2] https://de.wikipedia.org/wiki/Meldepflicht https://de.wikipedia.org/wiki/Meldepflicht