The form goes into effect when a principal cannot make decisions for themselves. Incapacitation often occurs due to serious injuries, being comatose, having dementia, or suffering from health-related challenges due to old age. A physician must verify (in writing) that the principal cannot communicate before the advance directive can go into effect.
Laws: § 31-32
Signing requirements (§ 31-32-5): Must be signed in the presence of the declarant by two (2) witnesses.