In 1710, A, 9 - Recommend ending this paragraph at "available".  "Emergency situation" is not defined.  The primary caregiver should have the flexibility to use the backup plan as necessary without having to worry about whetrher or not DMAS would deem it to be an emergency situation.  In like manner, 1730, A, 25 - recommend adding "or otherwise unavailable"  to the list.  If the primary caregiver had a medical or other appointment of their own and an appropriate backup was available, then per this sentence the primary caregiver could not leave because they personally were not ill, incapacitated or using respite.