N.Y. Comp. Codes R. & Regs. tit. 19, § 1264.4
(e) Signs identifying the existence of truss construction shall contain the roman alphanumeric designation of the construction type of the building, in accordance with the provisions for the classification of types of construction set forth in section 602 of the 2020 Building Code of New York State (said publication being incorporated by reference in Part 1221 of this Title), and an alphabetic designation for the structural components that are of truss construction, as follows:
"F" shall mean floor framing, including girders and beams
"R" shall mean roof framing
"FR" shall mean floor and roof framing
The construction type designation shall be placed at the 12 o'clock position over the structural component designation, which shall be placed at the six o'clock position.
(f) Signs identifying the existence of truss construction shall be affixed in the locations specified in Table I-1264 of this section.
TABLE I-1264
TRUSS IDENTIFICATION SIGN LOCATIONS
| Sign location | Sign placement |
| Exterior building entrance doors, exterior exit discharge doors, and exterior roof access doors to a stairway | Attached to the door, or attached to a sidelight or the face of the building, not more than 12 inches (305 mm) horizontally from the latch side of the door jamb, and not less than 42 inches (1,067 mm) nor more than 60 inches (1,524 mm) above the adjoining walking surface |
| Multiple contiguous exterior building entrance or exit discharge doors | Attached at each end of the row of doors and at a maximum horizontal distance of 12 feet (3.65 m) between signs, and not less than 42 inches (1,067 mm) nor more than 60 inches (1,524 mm) above the adjoining walking surface |
| Fire department hose connections | Attached to the face of the building, not more than 12 inches (305 mm) horizontally from the center line of the fire department hose connection, and not less than 42 inches (1,067 mm) nor more than 60 inches (1,524 mm) above the adjoining walking surface |