Detailed Look At Changes to NASA’s NODIS

Keith’s note: In January I noted that NASA had taken the NASA Online Directives Information System (NODIS) offline – so I posted an archive version of what was there before they fiddled with it (see: Someone Is Trying to Erase NASA’s Directives. Oops. We Have Them All). NODIS is now back online – but with lots of changes in according to White House Executive Orders. Well, the DOGE folks aren’t the only ones who know how to code. A NASAWatch reader has done an exhaustive look into what was changed – added, deleted etc. In NODIS “Noticing Changes in NASA NODIS Comparison of NASA Policy Documents Across Two Time Points 2025-01-20 to 2025-03-07“ notes:

• “At the start of the second Trump administration in 2025, NODIS went offline entirely many days , which was unusual. I was curious what changes might have occurred across that gap, but didn’t want to read and try to manually compare 260+ PDfs. No one does. Instead, I wrote some python code to collect and analyze the PDFs available at two different points in time. I figured it would be a good excuse to learn about the Internet Archive and build some skills around programmatic accessing of websites and identifying changes in PDFs.”
• “13 policy directives were deleted entirely with many having a focus on preventing or responding to discrimination. Two of those deleted were replaced by directives with a different name in what is basically a version bump.“