Authority: IC 22-13-2-2; IC 22-13-2-13; IC 22-13-4-2

Affected: IC 22-12-1; IC 25-4; IC 25-31; IC 32-1-6-2; IC 32-25-2-9; IC 36-7-2-9; IC 36-8-17

Sec. 2. (a) The definitions in IC 22-12-1 and this section apply throughout this rule and 675 IAC 15-1.2 through 675 IAC 15-1.7.

(b) "Building official" means the following:

1. (1) The office of the state building commissioner.
2. (2) The office of the state fire marshal.
3. (3) The local building officials authorized under IC 36-7-2-9 and a local ordinance approved by the commission.
4. (4) The fire department authorized under IC 36-8-17.

(c) "Class 1 structures" is defined as follows:

1. (1) "Class 1 structure" means any part of the following:

   1. (A) A building or structure that is intended to be or is occupied or otherwise used in any part by any of the following:

      1. (i) The public.
      2. (ii) Three (3) or more tenants.
      3. (iii) One (1) or more persons who act as the employees of another.
   2. (B) A site improvement affecting access by persons with a physical disability to a building or structure described in clause (A).

2. (2) Subdivision (1)(A) includes a structure that contains three (3) or more condominium units (as defined in IC 32-25-2-9) or other units that:

   1. (A) are intended to be or are used or leased by the owner of the unit; and
   2. (B) are not completely separated from each other by an unimproved space.

3. (3) Subdivision (1)(A) does not include the following:

   1. (A) A building or structure that:

      1. (i) is intended to be or is used only for an agricultural purpose on the land where it is located; and
      2. (ii) is not used for retail trade or is a stand used for retail sales of farm produce for eight (8) or less consecutive months in a calendar year.
   2. (B) A Class 2 structure.
   3. (C) A vehicular bridge.

   4. (D) A structure that is intended to be or is occupied solely to provide periodic maintenance or repair of:

      1. (i) the structure; or
      2. (ii) mechanical or electrical equipment located within and affixed to the structure.

(d) "Class 2 structure" is defined as follows:

1. (1) "Class 2 structure" means any part of the following:

   1. (A) A building or structure that is intended to contain or contains only one (1) dwelling unit or two (2) dwelling units unless any part of the building or structure is regularly used as a Class 1 structure.
   2. (B) An outbuilding for a structure described in clause (A), such as a garage, barn, or family swimming pool, unless any part of the outbuilding is regularly used as a Class 1 structure.
2. (2) Subdivision (1) does not include a vehicular bridge.

(e) "Commission" means the fire prevention and building safety commission.

(f) "Commissioner" means the state building commissioner.

(g) "Component" means one (1) or more parts of a fabricated unit.

(h) "Construction" means the fabrication of any part of an industrialized building system or mobile structure for use at another site.

(i) "Construction trailer" means an industrialized building system or mobile structure sited at a construction site for the purpose of storing tools and materials related to the project being constructed.

(j) "Design professional" means an architect or professional engineer who is registered under IC 25-4 or IC 25-31.

(k) "Industrialized building system" means any part of a building or other structure that is in whole or in substantial part fabricated in an off-site manufacturing facility for installation or assembly at the building site as part of a Class 1 structure, a Class 2 structure, or another building or structure. However, the term does not include a mobile structure or a system that is capable of inspection at the building site.

1. (l) "Manufactured home" means a structure, transportable in one (1) or more sections, that:
2. (1) in the traveling mode, is eight (8) body feet or more in width or forty (40) body feet or more in length; or

3. (2) when erected on site:

   1. (A) is three hundred twenty (320) or more square feet;
   2. (B) is built on a permanent chassis;
   3. (C) is designed to be used as a dwelling with or without a permanent foundation when connected to the required utilities; and
   4. (D) includes the plumbing, heating, air conditioning, and electrical systems contained therein;

except that the term shall include any structure that meets all the requirements of this subsection except the size requirements and with respect to which the manufacturer voluntarily files a certification required by the Secretary of Housing and Urban Development and complies with the standards established under 24 U.S.C. 5401 et seq.

(m) "Manufacturer's installation instructions" means instructions for the proper erection, assembly, or installation of an industrialized building system or mobile structure or component produced by the manufacturer.

(n) "Mobile home" means a dwelling unit of vehicular, portable design built before 1974 on a chassis and designed and intended to be:

1. (1) moved from one (1) site to another; and
2. (2) used without a permanent foundation.

(o) "Mobile structure" is defined as follows:

1. (1) "Mobile structure" means any part of a fabricated unit that is designed to be:

   1. (A) towed on its own chassis; and
   2. (B) connected to utilities for year-round occupancy or used as a Class 1 structure, a Class 2 structure, or another structure.

2. (2) The term includes the following:

   1. (A) Two (2) or more components that can be retracted for towing purposes and subsequently expanded for additional capacity.
   2. (B) Two (2) or more units that are separately towable but designed to be joined into one (1) integral unit.

(p) "Permanent foundation" means any structural system capable of transferring loads from a structure to the earth at a depth below the established frost line without exceeding the safe bearing capacity of the supporting soil.

(q) "Prototype" means an industrialized building system or mobile structure of original design that serves as a model for future industrialized building system or mobile structure product lines.

(r) "Quality control manual" means a manual prepared by a manufacturer for its manufacturing plants that outlines the manufacturer's quality control program.

(s) "Seal of acceptance" means a certification issued by the office of the state building commissioner for an industrialized building system or a mobile structure.

(t) "Site construction" means the work undertaken to erect, assemble, or install any part or component of an industrialized building system or mobile structure at the site where it will be used or occupied, except the relocation of a mobile structure.

(u) "System" means an industrialized building system or a mobile structure.

(v) "System plan" means the:

1. (1) drawings;
2. (2) specifications;
3. (3) structural typical system plans;
4. (4) quality control manual; or
5. (5) manufacturer's installation instructions;

submitted to the office of the state building commissioner. A system shall be based on one (1) completed width of structure and the number of stories.

(w) "Structural safety" means the continued capability of load bearing members of a building or structure to transmit actual and design live and dead loads to a foundation or other load-bearing members within the allowable working stresses of the materials or assembly of materials involved.

(x) "Structural/typical system plan" means structural or typical, or both, details submitted to supplement one (1) or more system plans and that are to be referenced by those system plans.

(y) "Third party inspection agency" means a person authorized by the commission to conduct inspections of and issue a seal of acceptance for industrialized building systems or mobile structures, or both.

(z) "Unit" means one (1) part of an industrialized building system or mobile structure that is one (1) part of the whole industrialized building system or mobile structure.

(Fire Prevention and Building Safety Commission; 675 IAC 15-1.1-2; filed Aug 18, 2005, 4:30 p.m.: 29 IR 13; readopted filed Aug 4, 2011, 8:35 a.m.: 20110831-IR-675110254RFA; readopted filed Mar 10, 2017, 9:37 a.m.: 20170405-IR-675170005RFA; readopted filed May 11, 2023, 2:22 p.m.: 20230607-IR-675230104RFA)