NFPA 225 : 2021

Chapter 1 Administration 1.1 Scope. 1.2 Purpose. (Reserved) 1.3 Application. 1.4 Retroactivity. 1.5 Term Use. 1.6 Equivalency. 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 General 4.1 Preinstallation Considerations. 4.2 Alterations. 4.3 Data Plate. 4.4 Installation Considerations. 4.5 Design and Construction. Chapter 5 Site Preparation 5.1 Access for Transporter. 5.2 Encroachments and Setback Distances. 5.3 Fire Separation Distance. 5.4 Issuance of Permits. 5.5 Site Preparation. 5.6 Investigation and Bearing Capacity of Soil. 5.7 Drainage. 5.8 Ground Moisture Control. Chapter 6 Foundations 6.1 General. 6.2 Piers. 6.3 Footings. 6.4 Permanent Foundations. 6.5 Special Considerations. Chapter 7 Installation Procedures.7.1 Before Moving Manufactured Home to Location. 7.2 Positioning of Home. 7.3 Interconnection of Mtisection Homes. 7.4 Crossover Connections for Multisection Manufactured Homes. 7.5 Anchoring Instructions. 7.6 Installation of On-Site Structures. 7.7 Installation Close-Up/Finishing. Chapter 8 Site-Installed Features 8.1 Installation of Site-Installed Features. 8.2 Hinged Roofs and Eaves. 8.3 Garden and Bay Windows. 8.4 Awnings and Ramadas. 8.5 Miscellaneous Lights and Fixtures. 8.6 Ventilation Options. 8.7 Optional Panels, Siding, and Molding. 8.8 Skirting. 8.9 Telephone and Cable TV. 8.10 Joints and Seams. Chapter 9 Preparation of Appliances.9.1 Clothes Dryer Vent. 9.2 Comfort Cooling Systems. 9.3 Fireplace and Wood-Stove Chimneys and Air Inlets. 9.4 Range, Cooktop, and Oven Venting. 9.5 Flood Hazard Areas. 9.6 Seismic Design Categories D0, D1, D2, and E. Chapter 10 Utility System Connection and Testing 10.1 Proper Procedures. 10.2 Water Supply. 10.3 Drainage System. 10.4 Gas Supply. 10.5 Heating Oil Systems. 10.6 Electricity. Chapter 11 Life Safety Features 11.1 Smoke Alarms. 11.2 Fire Sprinkler Systems. 11.3 Carbon Monoxide Detectors. 11.4 Fire Separation Distances. Chapter 12 Installation in Flood Hazard Areas 12.1 General. 12.2 Lowest Floor Elevation. 12.3 Foundations and Anchoring. 12.4 Installation Procedures. 12.5 Post-Installation Considerations. 12.6 Preparation of Appliances. 12.7 Utility Systems. Chapter 13 Seismic Provisions for Prescriptive Design of Support Systems 13.1 Scope. 13.2 Minimum Prescriptive Support System Requirements.13.3 Prescriptive Pier Support Systems. 13.4 Prescriptive Foundation Wall Support Systems. 13.5 Prescriptive Wood Cripple Wall Support Systems. Chapter 14 Seismic Installation and Equipment Bracing Requirements 14.1 General. 14.2 Site-Installed Water Heaters. 14.3 Site-Installed Equipment. 14.4 Utility Attachments.Chapter 15 Prescriptive Flood Provision Designs 15.1 Scope. 15.2 Anchorage and Support Materials. 15.3 General Limitations. 15.4 Prescriptive Ground Anchor Support and Anchorage System. 15.5 Prescriptive Foundation Wall Support and Anchorage Systems. Annex A Explanatory Material Annex B Final Inspection Checklist Annex C Sample Checklist for AHJ Officials Annex D Sample Schedule for Manufactured Home Installation Permits Annex E Informational References

This model standard shall cover the installation of manufactured homes.