Section 40 Confinement to isolation unit in correctional institutions - Massachusetts Statutes

Section 40. For the enforcement of discipline, an inmate in any correctional institution of the commonwealth may, at the discretion of its superintendent, be confined, for a period not to exceed fifteen days for any one offence, to an isolation unit.

Such isolation units must provide light, ventilation and adequate sanitary facilities, may contain a minimum of furniture, and shall provide at least one full meal daily.