In Oregon, anyway. Via the always-entertaining and often-enraging Nobody's Business comes this AP account of how Beaver State law keeps former prostitutes out of K-12 klassrooms:
A handful of times in the last few years, the members of the Oregon commission charged with determining who will get a license to teach in the state's public schools have found themselves faced with an application from a former prostitute. But under state law, commissioners have had to turn down the applications, regardless of any potentially mitigating circumstances. Unlike in the neighboring states of California, Nevada, Idaho and Washington, in Oregon, it doesn't matter if the prostitution conviction came at a tender age, if the woman herself was a victim of sexual abuse or forced into prostitution, or if she has since managed to right herself and her life.
Whole thing here.