09- 137 C.M.R. ch. 11, § 07
Grandstands, bleachers with 15 or more rows of seats and stadiums shall be provided with exits, calculated on the basis of 1 foot in width for each 300 persons, or fraction thereof served. Exits shall not be less than 3 feet 6 inches in width, nor less than 7 feet clear height and shall be located as directed by the Commissioner. Each exit shall be designated by a sign bearing the word EXIT in letters not less than 5 inches in height and one-half inch in width, having red letters on a white background, or white letters on a red background, located as directed by the Commissioner, and each change in direction of a way of egress shall be designated by a directional sign to be located as directed by the Commissioner.
09- 137 C.M.R. ch. 11, § 07