My daughter is learning to fly and will be through her commercial this year.
She asked me about the ATP at 21 years old since her instructor told her she would not be abe to get it without the stated aviation college courses stipultated for the restricted ATP.
I know that they can reduce the hours, but from my searching of the often vaguely written FAR's, I thought 21 was okay with 1500 tt and thex-c and other hours as specified.
Do you know of a ruling or document that specifically states that 21 is legal for an ATP though without 121 PIC priveleges?

Thanks.