The Code of Federal Regulations or CFR defines itself as:
"The Code of Federal Regulations (CFR) is the codification of the general and permanent rules published in the Federal Register by the executive departments and agencies of the Federal Government. It is divided into 50 titles that represent broad areas subject to Federal regulation. Each volume of the CFR is updated once each calendar year and is issued on a quarterly basis."
This database is provided by the government and therefore anyone may access and download a particular code or part of a code.
The UMD Library has paper the paper copy in the Reference area. The call number is REF KF70.A33.