In the case of a person determined under this chapter to be presently suffering from a mental disease or defect rendering the person mentally incompetent to the extent that the person is unable to understand the nature of the proceedings against that person or to conduct or cooperate intelligently in the defense of the case, the general court-martial convening authority for that person shall commit the person to the custody of the Attorney General.

The Attorney General shall take action in accordance with section 4241(d) of title 18.

If at the end of the period for hospitalization provided for in section 4241(d) of title 18, it is determined that the committed person’s mental condition has not so improved as to permit the trial to proceed, action shall be taken in accordance with section 4246 of such title.

In the application of section 4246 of title 18 to a case under this subsection, references to the court that ordered the commitment of a person, and to the clerk of such court, shall be deemed to refer to the general court-martial convening authority for that person. However, if the person is no longer subject to this chapter at a time relevant to the application of such section to the person, the United States district court for the district where the person is hospitalized or otherwise may be found shall be considered as the court that ordered the commitment of the person.

If a person is found by a court-martial not guilty only by reason of lack of mental responsibility, the person shall be committed to a suitable facility until the person is eligible for release in accordance with this section.

The court-martial shall conduct a hearing on the mental condition in accordance with subsection (c) of section 4243 of title 18. Subsections (b) and (d) of that section shall apply with respect to the hearing.

A report of the results of the hearing shall be made to the general court-martial convening authority for the person.

Subsections (f), (g), and (h) of section 4243 of title 18 shall apply in the case of a person hospitalized pursuant to paragraph (4)(B), except that the United States district court for the district where the person is hospitalized shall be considered as the court that ordered the person’s commitment.

Except as otherwise provided in this subsection and subsection (d)(1), the provisions of section 4247 of title 18 apply in the administration of this section.

In the application of section 4247(d) of title 18 to hearings conducted by a court-martial under this section or by (or by order of) a general court-martial convening authority under this section, the reference in that section to section 3006A of such title does not apply.

The provisions of chapter 313 of title 18 referred to in this section apply according to the provisions of this section notwithstanding section 4247(j) of title 18.

If the status of a person as described in section 802 of this title (article 2) terminates while the person is, pursuant to this section, in the custody of the Attorney General, hospitalized, or on conditional release under a prescribed regimen of medical, psychiatric, or psychological care or treatment, the provisions of this section establishing requirements and procedures regarding a person no longer subject to this chapter shall continue to apply to that person notwithstanding the change of status.