The classroom accounts service is listed on the IPUMS International webpage <https://international.ipums.org/international/classroom\_accounts.shtml\>.
But every MPC Project login page says that “the Minnesota Population Center uses a common user management system for several data projects: IPUMS-USA, IPUMS-International, CPS, IHIS, and NAPP.”
So can I use this service if I am teaching a class that will only use IPUMS-USA data?