Sec. 3d. A school that has a vestibule is not required to install a manual fire alarm box within the vestibule if a manual fire alarm box is located within 5 feet of the interior door of the vestibule.
Mich. Comp. Laws § 29.3d, under FIRE PREVENTION CODE.
Mich. Comp. Laws § 29.3d
Sec. 3d. A school that has a vestibule is not required to install a manual fire alarm box within the vestibule if a manual fire alarm box is located within 5 feet of the interior door of the vestibule.