All required electrically operated interior fire alarm systems and all devices and equipment in connection with such fire alarm systems installed after June 27, 1949, shall be systems, devices and equipment of a type which has been approved for the purpose by the Board of Building Standards and Building Appeals. Systems, devices and equipment which have been tested and approved by the Underwriters’ Laboratories, Inc., or tested and approved by other recognized testing laboratory with adequate equipment, experience and competency, may be approved by the Board without additional tests.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)