Janet just asked me about using casino comps for a visit to the Washington DC area, so I was looking at the website for the Horseshoe Casino in Baltimore. I found their web page for their craps game.
In the explanation of the game it says:
An effort must be made to bounce both dice off of the wall at the end of the table.
This is actually the policy at other Caesars casinos that I've played at, including Caesars Palace. They don't require that both dice hit the back wall, only that an effort is made to get the dice to the back wall. Short rolls are not overlooked and the crew will warn a shooter who keeps making short rolls. But if you get both dice to the end of the table and one or both miss the back wall by an inch or two or three they're not going to give you grief about it.
This is the first time I ever saw "an effort must be made to bounce both dice off of the wall at the end of the table" on a casino website.