08/25/2026
Five federal agencies still have active rules about protecting typewriter ribbons.
The Federal Energy Regulatory Commission says an insecure ribbon can’t be left in the machine overnight. The White House Office of Management and Budget says ribbons should be removed after each use. Other federal rules still explain how classified ribbons should be stored or destroyed.
And the logic actually made sense. A used ribbon can preserve a readable imprint of everything typed through it, so in the typewriter era, leaving one behind could mean leaving a copy of classified work sitting on the desk.
The machine disappeared. The security instructions stayed.
Here’s the best part: the Commodity Futures Trading Commission amended one of these rules in 2024, and the language covering “carbon paper, typewriter ribbons, recording discs, spools and tapes” survived.
That’s how old law hangs around. A section gets opened to solve one problem, while language written for another technological era can keep operating beside the new text.
With Justinian, can see the rule as it exists today, how it got there, which pieces survived decades of amendments, and how it fits into current law.
There is apparently no janitor for the Code of Federal Regulations.