Signing Requirements
An advance directive must be acknowledged by a notary public or signed by two witnesses.[1]
A witness cannot be:
- Related to the principal by blood or marriage
- A beneficiary to the principal’s estate
- The attending physician
- An employee of the attending physician or health facility
- A person with a claim against the principal’s estate
Revocation
The principal can revoke an advance directive at any time, regardless of their mental state, by doing any of the following[2]:
- Destroying the document (or ordering someone to do so in their presence)
- Executing a written revocation and notifying the attending physician
- Verbally expressing the revocation and notifying the attending physician
Registering
Washington has discontinued its Department of Health Living Will Registry.[3] Advance directives registered before June 30th, 2011, can be accessed through the U.S. Advance Care Plan Registry.