2. Defendants should not be executed or sentenced to death if, at the time of the offense, they had a severe mental disorder or disability that significantly impaired their capacity (a) to appreciate the nature, consequences or wrongfulness of their conduct, (b) to exercise rational judgment in relation to conduct, or © to conform their onduct to the requirements of the law. A disorder manifested primarily by repeated criminal conduct or attributable solely to the acute effects of voluntary use of alcohol or other drugs does not, standing alone, constitute a mental disorder or disability for purposes of this provision.

3. Mental Disorder or Disability after Sentencing

(a) Grounds for Precluding Execution. A sentence of death should not be carried out if the prisoner has a mental disorder or disability that significantly impairs his or her capacity (i) to make a rational decision to forgo or terminate post-conviction proceedings available to challenge the validity of the conviction or sentence; (ii) to understand or communicate pertinent information, or otherwise assist counsel, in relation to specific claims bearing on the validity of the conviction or sentence that cannot be fairly resolved without the prisoner's participation; or (iii) to understand the nature and purpose of the punishment, or to appreciate the reason for its imposition in the prisoner's own case. Procedures to be followed in each of these categories of cases are specified in (b) through (d) below.

(b) Procedure in Cases Involving Prisoners Seeking to Forgo or Terminate Post-Conviction Proceedings. If a court finds that a prisoner under sentence of death who wishes to forgo or terminate post-conviction proceedings has a mental disorder or disability that significantly impairs his or her capacity to make a rational decision, the court should permit a next friend acting on the prisoner's behalf to initiate or pursue available remedies to set aside the conviction or death sentence.

©] Procedure in Cases Involving Prisoners Unable to Assist Counsel in Post-Conviction Proceedings. If a court finds at any time that a prisoner under sentence of death has a mental disorder or disability that significantly impairs his or her capacity to understand or communicate pertinent information, or otherwise to assist counsel, in connection with post-conviction proceedings, and that the prisoner's participation is necessary for a fair resolution of specific claims bearing on the validity of the conviction or death sentence, the court should suspend the proceedings. If the court finds that there is no significant likelihood of restoring the prisoner's capacity to participate in post-conviction proceedings in the foreseeable future, it should reduce the prisoner's sentence to the sentence imposed in Capital cases when execution is not an option.

(d) Procedure in Cases Involving Prisoners Unable to Understand the Punishment or its Purpose. If, after challenges to the validity of the conviction and death sentence have been exhausted and execution has been scheduled, a court finds that a prisoner has a mental disorder or disability that significantly impairs his or her capacity to understand the nature and purpose of the punishment, or to appreciate the reason for its imposition in the prisoner's own case, the sentence of death should be reduced to the sentence imposed in capital cases when execution is not an option.