Virtually every employer in the US with over 20 employees is in violation of dozens of OSHA regulations.
I'd bet that most or all federal government buildings (including those where OSHA staff have offices) are also in violation of dozens of OSHA regulations (but OSHA doesn't go after them because it would embarrass the Labor Secretary and the Administration).
OSHA regulations (and fines for violators) have increased significantly in recent decades, with many unnecessary overkill regulations that have done little if anything to improve worker safety (because workers in most occupations already face very little safety risks).
The contractor who remodeled our ba
throom told me he was fined $50,000 by OSHA for multiple violations (that he didn't even know were violations) at an outdoor construction site. After reading lots of OSHA regulations, he told me that complying with every OSHA regulation would reduce each employee's production by about 30% (because they'd have to spend several hours each day just complying with OSHA regs that did little or nothing to protect workers).
And sometimes complying with OSHA regs increases safety risks at workplace. I remember working in an iron foundry during summers when in college (back in the 1970's) and we were required by OSHA to wear safety eye glasses at all times. Unfortunately, whenever we broke the molds to retrieve and gather the hot iron castings (about 500 degrees Farenheit), the hot vapor that was released would fog up our safety glasses so bad that we couldn't see anything (including the hot castings we were picking up with very thick gloves), which dramatically increased our risks of being severely burned by the hot iron (especially because we had to walk through a field of many dozen recently poured molds containing white hot liquid iron (2,700 degrees Farenheit) carrying the cooled off castings (each of which typically weighed 5 - 20 lbs). One wrong step or fall could have been deadly (so seeing what you are carrying and where you are walking is critically important, but it was also an OSHA violation).
On several occasions, after being notified (or tipped off) about an upcoming OSHA inspection, the foundry's management shut down the entire foundry for a day, and all workers were reassigned to eliminate as many OSHA violations as possible. I painted lots of lines on the floor, posted lots of safety signs, had many fire extinguishers refilled, and moved lots of iron castings from walkways and near exits.
Good thing that foundry burned down (a suspicious fire), as it would be in violation of several thousand OSHA regulations today.