As I mentioned earlier, "officially" most universities want to hire teachers with either an MA +2 years of experience or a BA +4 years. But some universities don't stick so closely to these rules.
For example, if the candidate that they are interested in is "almost there," -- they have the necessary experience but are only half way through their Master's online, certain colleges will overlook the fact that they don't have a completed Master's on hand... (I've seen this happen many times).
Or another example, a person has a completed Master's on hand, but they have less than 2 years of relevant teaching experience on their resume... This too can be an exception for certain universities...
Or further yet, the teacher they hired can't fulfill their obligation and there's a week left until the start of the semester. Then they may even hire someone with a B.A. and 1-2 years of teaching experience to fill the spot.
It all depends on the particular college or university: what their ranking is, how strict their hiring rules are, how much they like you, how bad they need you, your competition, the proximity of the semester starting date, and a few other variables.