Do we have to include gap year plans in AMCAS?

Is it necessary that we include our gap year plans on the personal statement? I am 90% sure I will be doing an MPH in my gap year. BUT considering last minute changes, and in case I get a cool job offer or something, I may decide to do the MPH later on in med school. This is why I'm hesitant to put it in my PS, and I won't really know for sure until end of June whether I am taking up the MPH offer. Obv, I'd rather submit AMCAS before then! I talk about my public health interests in my PS a... Do we have to include gap year plans in AMCAS?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums