3 RCNY 505-1 & RCNY 505-2

The new FDNY signage requirement, 3 RCNY §505-01, makes very specific new requirements for apartment and guest room identification signs along with directional markings and exit signs. All apartment buildings and hotels in New York City must comply with this new requirement for apartment door markings and other signs by March 30th of 2018, however, the first compliance dates for occupancies with multi-floor dwellings (duplex, triplex) units are much, much sooner – March 30, 2017.

This new safety law has set explicit standards and requirements for the design and placement of entrance door room number and letter markings for dwelling units. The law applies to all apartments, guest rooms and sleeping rooms in occupancy groups R-1 and occupancy group R-2 buildings as well as installing building additional lobby and hallway corridor directional signs and exit signs. The idea behind the law is that building owners mark apartment entrance doors with very specific emergency markings that serve to assist firefighters, first responders and building occupants to identify apartment numbers in smoke conditions that obscure the regular (eye-level) apartment door numbers signs.

The first compliance date of March 30, 2017, for the new signage requirement will initially only affect a very small number of buildings. If your property contains any duplex or triplex units, the property is required to comply with the new signage regulation and must install these new markings by March 30, 2017. We strongly encourage all property owners and managers to review the full FDNY signage requirement.


Determine if your building requires markings for compliance with FDNY Rule 3 RCNY 505-01 & 3 RCNY505-02

  • Is the building classified as R-1 or R-2?R-1 Classifications: Boarding houses (transient), Hotels (transient), Motels (transient)
    R-2 Classifications: Apartment houses, Boarding houses (non-transient), Convents, Dormitories, Fraternities and sororities, Hotels (non-transient), Live work units, Monasteries, Motels (non-transient), Vacation timeshare properties
  • Is your building fully sprinklered?
  • Do you have floors with more than (8) dwelling units?


If your answer is Yes for each of the three questions above, then your building requires markings in order to be code compliant.

If your building require markings for compliance with FDNY Rule 3 RCNY 505-1 & RCNY 505-02, please answer questions below to help us better understand your compliance needs.


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Benefits And Technical Data


  • UL 1994 Listed 0 IMZI.SA3353
  • ULC572 Listed – IMZl7. SA3353
  • ASTM E2072 & ASTM E2073
  • ISO 17398:2004


  • ASTM e 162-2002 Surface Flammability of Materials Using a Radiant Heat Energy Source


  • ASTM D3648-2004 Standard Practices for the Measurement of Radioactivity
Compliant to NYC safety code:
  • 3 RCNY 505-01 and 3 RCNY 505-02


  • SMO 800 – C Toxic Gas Testing


  • ASTM D4828 Washability of Organic Materials