NFPA 501A PDF

Highlights

The 2025 edition of NFPA 501A, Standard for Fire and Life Safety Criteria for Manufactured Home Installations, Sites, and Communities, features several significant changes, including:
Additions to Chapter 1, including a new enforcement provision and updates to requirements in the scope, purpose, and application sections, as well as life safety considerations
New definition for manufactured home in Chapter 3
Several new requirements in Chapter 5 pertaining to the maintenance or replacement of electrical equipment, standby power, and electric vehicle charging equipment
New Chapter 7 on mechanical and plumbing systems

Table of Contents

NFPA® 501A Standard for Fire and Life Safety Criteria for Manufactured Home Installations, Sites, and Communities 2025 Edition
Chapter 1 Administration
1.1 Scope.
1.2 Purpose.
1.3 Application.
1.4 Retroactivity.
1.5 Equivalency.
1.6 Units and Formulas.
1.7 Enforcement.
1.8 Term Use.
Chapter 2 Referenced Publications
2.1 General.
2.2 NFPA Publications.
2.3 Other Publications.
2.4 References for Extracts in Mandatory Sections.
Chapter 3 Definitions
3.1 General.
3.2 NFPA Official Definitions.
3.3 General Definitions.
Chapter 4 Fuel Supply
4.1 Fuel Supply.
4.2 Single and Multiple Manufactured Home Site Fuel Supply Systems.
4.3 Multiple Manufactured Home Site Fuel Distribution and Supply Systems.
4.4 Fuel Supply Systems Installation.
4.5 Manufactured Home Accessory Building Fuel Supply Systems.
4.6 Community Building Fuel Supply Systems in Manufactured Home Communities.
Chapter 5 Electrical System
5.1 Manufactured Home Site and Community Electrical Equipment and Installations.
5.2 Maintenance or Replacement of Electrical Equipment Within the Manufactured Home Site or Community Electrical Distribution.
5.3 Standby Power for a Manufactured Home Site or Community Electrical Distribution.
5.4 Electric Vehicle Charging Equipment.
Chapter 6 Life Safety and Fire Safety
6.1 General.
6.2 Manufactured Home Site Fire Safety Requirements.
6.3 Manufactured Home Community Buildings.
6.4 Accessory Building or Structure Fire Safety Requirements.
6.5 Access, Ingress, Egress, and Evacuation.
6.6 Wildland/Urban Interface/Intermix.
Chapter 7 Mechanical and Plumbing Systems
7.1 Mechanical Systems.
7.2 Plumbing Systems.
Chapter 8 Emergency Considerations
8.1 Severe Windstorms.
Annex A Explanatory Material
Annex B Manufactured Home Community Action for Fire Safety
Annex C Responsibilities of the Manufactured Home Resident
Annex D Informational References