> The most I found was something about there being a mandated minimum open time, during which the close door button would not be allowed to work. Which still m

> The most I found was something about there being a mandated minimum open time, during which the close door button would not be allowed to work. Which still makes no sense: if a human being is pushing a close button, presumably he has a good reason for doing so. I'm rather hopeful that the actual facts are that the ADA requires a minimum open time, and that a close button may shorten that time because it's an active human request.