Indiana Code Title 29. Probate § 29-2-19-8

Sec. 8. (a) A person who is of sound mind and is at least eighteen (18) years of age may execute a funeral planning declaration substantially in the form set forth in section 13 of this chapter.  A declaration may not be included in a will, a power of attorney, or a similar document.

(b) A declaration must meet the following conditions:

(c) The following may not be a witness to a declaration under subsection (b)(6):

For purposes of subdivision (3), a person is not considered to be entitled to any part of the declarant's estate solely by virtue of being nominated as a personal representative or as the attorney for the estate in the declarant's will.

(d) A declaration is not binding upon a funeral home, a cemetery, any other person engaged in the business of providing funeral services, any other person selling merchandise or grave markers, or any other person providing a service or other property subject to the declaration until the person receives consideration for the service, merchandise, or other property.  If any provision of a declaration conflicts with:

the provision contained in the declaration controls.

(e) Except as provided in subsection (f), a declarant may not direct an individual who is:

to be the declarant's designee in a declaration executed under this chapter.

(f) Subsection (e) does not apply to an individual who is related to the declarant by birth, marriage, or adoption.