@rlrmilitarymom -
The question is - has he been 'disqualified' by DoDMERB?
It sounds like your DS was not 'disqualified' by DoDMERB, but is in the remedial phase of the process where DoDMERB requested more info about the broken foot so that they can make a determination of 'qualified' or 'disqualified.'
If this is the case, then he can still be 'qualified' by DoDMERB and not need a waiver - which would be fabulous!
If he was DQ'd by DoDMERB, then WP (in considering him for a waiver) requested the info through DoDMERB and WP will use that info to make the determination to recommend to the Admissions Committee that the waiver be granted or denied.