(1)
Where a fire-resistance rating or a fire-protection rating is required in this Section for an element of a building, such rating shall be determined in conformance with
(a)
the test methods described in Part 3,
(b)
MMAH Supplementary Standard SB-2, “Fire Performance Ratings,” or
(c)
MMAH Supplementary Standard SB-3, “Fire and Sound Resistance Tables.” (See Note A-9.10.3.1.(1))