The government has done a pretty good job of making the process very easy: https://www.foia.gov/
But, just like with ChatGPT, you'll likely have to do a bit of "prompt engineering" to get a specific document. "Give me all the stuff you guys got on UFOS1!!" will likely be less fruitful then "I am requesting the email correspondence between X and Y related to the documented observation of an atmospheric event occurring on ..."
In my experience these requests are taken quite seriously.
>For a typical requester the agency can charge for the time it takes to search for records and for duplication of those records. There is usually no charge for the first two hours of search time or for the first 100 pages of duplication.
>You may always include in your request letter a specific statement limiting the amount that you are willing to pay in fees. If an agency estimates that the total fees for processing your request will exceed $25, it will notify you in writing of the estimate and offer you an opportunity to narrow your request in order to reduce the fees. If you agree to pay fees for a records search, you may be required to pay such fees even if the search does not locate any releasable records.
The cost of the request is often based on how many man hours it will take to fulfill. Different agencies have different rates / different capabilities for performing the document search itself. Some agencies may also reflexively deny requests, which would require a lawyer to sue them to get resolution if you believe the denial doesn't legitimately meet legal exception requirements.
> Can I ask for any communications that are related to a decision made or drafting of something that goes into the CFR?
The broader the request, the more expensive it is and the lower the likely signal-to-noise ratio of the response is.
Also, on your specific example, there is a broad exemption to FOIA for internal deliberative process-related opinions, conclusions, and recommendations, etc.
There's about 9 exemptions that can be used to exclude information from a FOIA request ( https://www.faa.gov/foia/media/exemptions.pdf ). Primarily things regarding law enforcement, national security and privacy although there is one for wells and geological info.