Grandstands and permanent bleachers shall be provided with reasonably accessible toilet rooms for either sex having not less than one urinal and one water closet for men and not less than two water closets for women for each three hundred (300) persons, or fraction thereof, served. Toilet rooms shall be vented to atmosphere as directed by the Commissioner of Public Safety Through urinals are prohibited.
16- 219 C.M.R. ch. 29, § 08