I'm not gonna look it up right now, cause I have no need to. If you say it's so, it must be true.
However, it doesn't make any sense to me.
So, this corner building has been in operation for let's say 50 years, selling hardware supplies. A man coming down the street, walks in the front door, asks for a hammer and then announces he is gonna sue this place for not being ADA compliant is all it takes ?? They have to put ramps up to the doors, create the wheelchair accessible curbs, elevators to go to the second floor, all new signs, emergency exit signs, emergency lighting and then pay a fine ?? Well, the emergency lighting and signs fall under the fire code, so they SHOULD already be there, but the rest ??
I had several customers with your scenario over the years. I could be wrong, but I was with some of the inspectors and they said different from what you are saying. They could not force [in these cases] one was a restaurant wanting to really fix up the old place, one was a doctor's office, another was...... us, when we bought our building. In the case of the restaurant owner, he said, he just won't fix it up cause it was gonna cost him around $200,000 in ADA codes alone, plus his own remodeling costs, so he opened another place and let this one alone and it's still in complete operation with only ADA signs for his bathrooms. The doctor's office never did the ADA signs or the elevator. Fire Marshall made him get the emergency signs, which we both know aren't ADA. As for me, we don't have a single ADA sign in here and the pavement was already ADA compliant when we got here. We made lots of improvements, but the inspector said all the other things won't be necessary. Why ?? I have no idea, but we didn't pay a cent for anything ADA.
Oh, the guy in charge of the ADA inspections isn't far from our shop and I usually discuss this stuff with him first. That's why I never read your rulebook about this. Never knew of the codes of which you speak. But again, I'm not gonna open a can of worms at this point.