When I was working for LexisNexis, the US Post Office was also managing the printing of the Federal Register. Weekly magazine with updates to federal code and they printed the US Federal Code books. I suppose they managed the printing of many or all federal publications.

They were attempting to outsource that between 2001 and 2003 and I think finding it more expensive to outsource than to run itself. I remember late arriving publications because private printers could not get in step with the deadlines.