C.R.S. § 25-48-104

(1) In order to receive a prescription for medical aid-in-dying medication pursuant to this article, an individual who satisfies the requirements in section 25-48-103 must make two oral requests, separated by at least fifteen days, and a valid written request to his or her attending physician. (2) Intentionally left blank —Ed. (a) To be valid, a written request for medical aid-in-dying medication must be: (I) Substantially in the same form as set forth in section 25-48-112 ; (II) Signed and dated by the individual seeking the medical aid-in-dying medication; and (III) Witnessed by at least two individuals who, in the presence of the individual, attest to the best of their knowledge and belief that the individual is: (A) Mentally capable; (B) Acting voluntarily; and (C) Not being coerced to sign the request. (b) Of the two witnesses to the written request, at least one must not be: (I) Related to the individual by blood, marriage, civil union, or adoption; (II) An individual who, at the time the request is signed, is entitled, under a will or by operation of law, to any portion of the individual’s estate upon his or her death; or (III) An owner, operator, or employee of a health-care facility where the individual is receiving medical treatment or is a resident. (c) Neither the individual’s attending physician nor a person authorized as the individual’s qualified power of attorney or durable medical power of attorney shall serve as a witness to the written request.