New Business Occupancies — NFPA 101 (2018) Chapter 38

This guide consolidates the complete requirements for New Business Occupancies under NFPA 101:2018 (Chapter 38). Section numbers below reference the Code for fast verification.

1) Scope & Definitions

“Business” includes offices, professional or service-type transactions, higher-education classroom spaces, and similar functions. See 6.1 for occupancy categories; Chapter 38 applies to new business occupancies; Chapter 39 covers existing.

2) Means of Egress (38.2 & Chapter 7)

General egress rules in Chapter 7 apply unless modified by 38.2.
Provide required number of exits per 7.4 and arrangement/remoteness per 7.5.
Emergency lighting and exit signs per 7.9 and 7.10.

3) Protection from Hazards & Interior Finish (38.3.2–38.3.3)

Protect hazardous areas per 8.7 (enclosures/ratings) and occupancy rules in 38.3.2.
Interior finish limits per Chapter 10 and 38.3.3.

4) Detection, Alarm & Communications (38.3.4)

When is a fire alarm system required? Provide a system per 9.6 when any of the following apply (38.3.4.1):

Building is 3 or more stories in height.
50+ occupants above or below level of exit discharge.
300+ total occupants in the building.

Notification (audible/visible/voice), emergency forces notification, and zoning/annunciation per 9.6. Higher-education areas: consider mass notification risk analysis (38.3.4.5 → 9.14).

5) Extinguishing & Standpipes (38.3.5, 9.9, 9.10)

Portable fire extinguishers in accordance with Section 9.9.
Standpipes where required by Chapter 38, installed per NFPA 14 (9.10).
Sprinkler requirements defer to Chapter 9 / NFPA 13 and occupancy triggers.

6) Corridors & Openings (38.3.6)

Corridor separation by 1‑hour fire barriers unless exceptions are met (e.g., open floor, single tenant, or building fully sprinklered per 9.7.1.1(1)).
Openings in rated corridor walls protected per 8.3.

7) Special Provisions & High‑Rise (38.4 → 11.8)

For high-rise business buildings, comply with Section 11.8 (sprinklers throughout, Class I standpipes, EVACS voice/alarm, smokeproof enclosures for new vertical exits, and emergency lighting).

8) Quick‑Reference Tables

Table A — Fire Alarm Triggers (38.3.4.1)

Condition	Requirement	Reference
≥ 3 stories	Provide fire alarm system	38.3.4.1(1) → 9.6
≥ 50 occupants above/below discharge	Provide fire alarm system	38.3.4.1(2) → 9.6
≥ 300 total occupants	Provide fire alarm system	38.3.4.1(3) → 9.6

Table B — Corridors (Separation & Exceptions)

Item	Requirement	Reference
Separation	1‑hour fire barriers	38.3.6.1 → 8.3
Exceptions	Open floor, single tenant, or supervised sprinklers	38.3.6.1(1)–(3), 9.7.1.1(1)

9) Design/Review Checklist

Confirm new Business occupancy (Ch. 38) and any mixed/adjacent occupancies (6.1.14).
Verify number/arrangement of exits (7.4–7.5), travel distance (7.6), discharge (7.7), illumination (7.8), emergency lighting (7.9), exit signs (7.10).
Apply 38.3.4.1 alarm triggers; design per 9.6 & NFPA 72.
Extinguishers per 9.9; standpipes per 9.10; sprinklers per 9.7/NFPA 13.
Corridor ratings & openings per 38.3.6 and 8.3.
High‑rise cross‑check per 11.8 if applicable.

10) References

NFPA 101:2018 — Chapters 6, 7, 8, 9, 38, 11.8
NFPA 13, NFPA 14, NFPA 72, NFPA 10

New Business Occupancies — Life Safety Requirements