Is it OK to Ask for 3-5 Years Experience

Is it considered age discrimination to put a line in a classified ad asking that applicants have a certain number of years of experience?

That line alone is unlikely to violate the Federal ADEA, which governs age discrimination. Experience does not equal age, since many “young” people have lots of experience in a particular field and many “older” people have no experience.

Source: Epstein, Becker & Green, New York, July 29, 1998.