NFPA 225: Model Manufactured Home Installation Standard

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What is NFPA 225?
NFPA 225: Document Scope
1.1* Scope. This model standard shall cover the installation of manufactured homes wherever sited in the United States and its territories. The manufacturer’s installation instructions shall apply under either of the following conditions: (1) To items not covered by this standard (2) Where the manufacturer’s approved installation instructions provide a specific method of performing a specific operation or assembly A.1.1 Utilization of this standard by the homeowner and installation crew and use of a registered professional engineer in those unusual circumstances as required by this standard will help ensure the homeowner of a well-built, safe, and affordable home. This standard contains instructions, including specifications and procedures, for installation of utility connections of a manufactured home. It has been written in an objective manner so that it can be understood by those who are trained in the installation of manufactured homes and who are properly licensed. It discusses the installation of the home from preparation of the site through final inspection. It includes many tables and figures giving important data for proper installation.

This standard presents guidelines for safe, efficient, and effective installation of manufactured homes used as dwelling units in the United States and its territories.

Official document scope
What does NFPA 225 address?

In addition to basic administrative features and criteria associated with installation of manufactured homes, provisions cover site preparation, foundations, and procedures for on-site installation and erection, as well as management of appliances and utility connections; anchoring of the home and protection against seismic events, floods, and wind; and final inspection.

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