NAFS Overview
The sponsors of AAMA/WDMA/CSA 101/I.S.2/A440 North American Fenestration Standard/Specification for windows, doors and skylights (NAFS), have conducted a side-by-side comparison of the testing and specification differences between the 2008, 2011, 2017 and 2022 editions of the standard. Equivalency bulletins aiming to show the user how all the editions correlate to one-another, were made available following the 2011, 2017 and 2022 editions of NAFS. These should be used as tools in conjunction with the NAFS standards available for purchase in the FGIA Online Store.
Fenestration standards are always evolving due to changes in technology, building codes and rating system performance requirements. The performance-based, material-neutral NAFS governing windows, doors and skylights is no exception. This material-neutral omnibus guidepost for fenestration specifiers, has been evolving ever since 1997 and serves as the basis for product certification as required by IBC and IRC.
Changes from the 2008, 2011, 2017 and 2022 versions of the standard (referenced in the International Building Codes and available as the basis for AAMA’s nationally-recognized, ANSI-accredited third-party testing and Gold Label Certification Program (the 2022 version of NAFS is expected to be referenced in the 2024 International Building Codes and the 2025 National Building Code of Canada)) include key aspects of the performance standards.
The following table lists the NAFS-22 recognized operator type designation codes, along with their full description.
NAFS-22 Recognized Operator Types
| AP = Awning, hopper, projected window | RWP = Roof window — plastic glazed |
| ATD = Architectural terrace door | SD = Sliding door |
| BW = Basement window | SHD = Side-hinged door |
| C = Casement window | SHW = Side-hinged (inswinging) window |
| DASHD = Dual-action side-hinged door | SKG = Unit skylight — glass glazed |
| DAW = Dual-action window SHD = Side-hinged door | SKP = Unit skylight — plastic glazed |
| FD = Fixed door | SLT = Side lite |
| FLD = Folding door | SP = Specialty product |
| FW = Fixed window | SSP = Secondary storm product |
| GH = Greenhouse window | TA = Tropical awning window |
| H = Hung window | TASSP = Tropical awning window secondary storm product |
| HE = Hinged rescue window | TDDCC = Tubular daylighting device — closed ceiling |
| HP = Horizontally pivoted window | TDDOC = Tubular daylighting device — open ceiling |
| HS = Horizontal sliding window | TH = Top-hinged window |
| J = Jalousie window | TTR = Top turn reversible |
| JA = Jal-awning window | TR = Transom |
| MA = Mullion assembly | VP = Vertically pivoted window |
| POW = Parallel opening window | VS = Vertical sliding window |
| RWG = Roof window — glass glazed |
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