and REQUESTS FOR INFORMATION, where the recipient(s) is/are given a DUE DATE to respond. If the response was inadequate or clarifications were needed, a follow-up request would be sent.
I know during my federal career, when someone from Congress sent a request to our agency, the panic button was pushed and an "ALL HANDS" / "ALL EMPLOYEES" notice would be sent out for anyone who had something "responsive" to the request, should provide our supervisors with that for compiling. Eventually all the compiled stuff would be boxed up and shipped to our HQ.
In the "old days", it came as a FAX and one of the secretaries would make photocopies of it for each Branch and would attach a "buck slip" on it to get it distributed around to each supervisory group (where each person would initial that they received/read and would pass it on among their colleagues). In some instances, it would go in one of those distribution envelope thingies -

In the "later days", after we got a LAN and email, it would be sent as an "ALL EMPLOYEES" email.