There are five tribes which are unaffected by AIPRA. These five tribes have their own specific  probate codes laid out by Public Laws promulgated by Congress.

  1. Yakama Tribes – P.L. 91-627
  2. Nez Perce Tribe – P.L. 92-443
  3. Standing Rock Sioux Tribe – P.L. 96-274
  4. Sisseton Wahpeton Sioux Tribe – P.L. 98-513
  5. Warm Springs Tribe – P.L. 92-377

For more information on the probate laws for these  five tribes, look at the specific Public Laws which control their probate and  will writing processes.  The Institute  for Indian Estate Planning (  has a link to the current AIPRA provisions, including those related to these  tribes’ probate laws.