Opening this issue to explore ingesting the US National Address Database (NAD) - https://www.transportation.gov/gis/national-address-database.

Open Addresses might currently have most (or all?) of the underlying sources that make up the NAD but there are reasons to ingest it and for downstream users to want to use it:

• It is offered under a single license which reduces the burden of checking each individual source
• It normalizes fields into a common schema rather than each source having its own and it populates some fields that underlying sources may be missing. For example some towns don't populate their "city" field so it needs to be added on a dataset-by-dataset basis, which the NAD has already done
• If we can align more people on using the NAD it can hopefully entice more organization to participate and use it (okay, I admit this one is mostly vibes)

I think it's a 32 GB (or around there) CSV. I'm not sure if that would pose a problem to existing batch infrastructure, but I'm happy to get the data in here. But I figured I'd open this issue to see if Open Addresses folks are aligned before going too far down that path.