IPUMS PMA microdata are available free of charge, but their use imposes legally-binding responsibilities upon the user. To access the data, a prospective user must submit an electronic authorization form (this form) identifying the user by name, electronic address, and institutional affiliation. The investigator must state the purpose of the proposed project and agree to abide by the regulations specified below. If multiple investigators are involved in a project, all must register separately.
By completing this application, you agree to receive occasional email messages. Such messages will be infrequent, and we will safeguard the confidentiality of your email address.