This is the history of railroad tie preservation.

Look at how it works. Trials. Errors. Things that screwed up and forced other solutions. Conflicts. Many different companies trying different things.

This is what works. This is why our country is better off than many others.

Nobody created a Government Tie Preservation Department where a bunch of people in a room, hand picked by politicians, would decide how all railroad ties would be preserved henceforth.

This is what's used today. Many materials, many designs, many applications for countless individual cases and needs. The industry is regulated as far as safety is concerned, but nobody (yet) is telling the industry you must do things this particular way, safe or not.