105 Mass. Reg. 451.141
Current through Register 1523, June 7, 2024
Each window and door which is used for ventilation to the exterior shall have tight-fitting screens with a minimum of 16 mesh per square inch to effectively block entrance of insects and rodents. Each screen door shall be equipped with a self-closing device unless the door is designed to slide to the side.
105 CMR 451.141