Formal Interpretations

Formal Interpretations (FIs) provide formal explanations of the meaning or intent of any specific provision or provisions of any document in accordance with Section 6 of the Regulations Governing Committee Projects.

Download a Formal Interpretation request form (doc, 58 KB).
For previously issued Formal Interpretations (not listed below), e-mail the NFPA Library, call +1 617 984-7445, or fax +1 617 984- 7060

Formal Interpretations for Current Document Editions are listed by document below.
*FIs are listed in reference number order and posted in PDF format unless otherwise noted.

NFPA 10, FIs (96 KB)
NFPA 12 FIs (58 KB)
NFPA 12A FIs (68 KB)
NFPA 13 FIs (80 KB)
NFPA 13D FIs (162 KB)
NFPA 17 FIs (26 KB)
NFPA 20 FIs (52 KB)
NFPA 24 FIs (25 KB)
NFPA 30 FIs (20 KB)
NFPA 30A FIs (67 KB)
NFPA 30B FIs (105 KB)
NFPA 33 FIs (93 KB)
NFPA 37 FIs (24 KB)
NFPA 40 FIs (22 KB)
NFPA 45 FIs (20 KB)
NFPA 55 FIs (21 KB)
NFPA 58 FIs (21 KB)
NFPA 59 FIs (35 KB)
NFPA 59A FIs (144 KB)
NFPA 70 FIs (148 KB)
NFPA 72 FIs (101 KB)
NFPA 80 FIs (194 KB)

NFPA 85 FIs (20 KB)
NFPA 86 FIs (61 KB)
NFPA 90A FIs (172 KB)
NFPA 99 FIs (69 KB)
NFPA 101A FIs (18 KB)
NFPA 110 FIs (34 KB)
NFPA 130 FIs (29 KB)
NFPA 306 FIs (34 KB)
NFPA 318 FIs (33 KB)
NFPA 423 FIs (28 KB)
NFPA 430 FIs (24 KB)
NFPA 496 FIs (70 KB)
NFPA 654 FIs (31 KB)
NFPA 664 FIs (28 KB)
NFPA 701 FIs (22 KB)
NFPA 820 FIs (29 KB)
NFPA 1123 FIs (48 KB)
NFPA 1141 FIs (22 KB)
NFPA 1403 FIs (63 KB)
NFPA 1971 FIs (39 KB)