OBC DIVISION B · PART 2 — RESERVEDUpdated for the 2024 Ontario Building Code

Section 2.1 — General

Full text of Section 2.1 (General) — Division B, Part 2 (Reserved) of the 2024 Ontario Building Code, with every article reproduced below.

2.1.1.Scope

2.1.1.1.Scope permalink →

(1) This Part is concerned with the fire, structural, heating, ventilating and air-conditioning performance of farm buildings, as well as processes and operations carried out therein that involve a risk of explosion, high flammability or related conditions that create a hazard to life safety. (See Note A-2.1.1.1.(1))

2.1.2.Application

2.1.2.1.Application permalink →

(1) Except as provided in Sentences (2) and (3), this Part applies to all farm buildings (a) that are (i) more than 600 m2 in building area or more than 3 storeys in building height used for major occupancies classified as Group G, Division 1, 2 or 3 agricultural occupancies, or (ii) used for major occupancies classified as Group G, Division 4, agricultural occupancies with no human occupants, and (b) described in Sentence 2.1.2.2.(1). (2) Subsections 2.2.6. and 2.2.7. do not apply to Group G, Division 4 major occupancies. (3) Farm buildings not described in Sentence (1) shall conform to the requirements of Article 2.1.2.3.

2.1.2.2.Classification of Buildings Containing Agricultural Occupancies permalink →

(See Note A-3.1.2.) (1) Buildings or parts of buildings containing an agricultural occupancy that has an occupant load of not more than one person per 40 m2 shall be classified according to their major occupancy as belonging to Group G, Division 1, 2, 3 or 4. (2) Buildings or parts of buildings containing an agricultural occupancy that has an occupant load of more than one person per 40 m2 shall be classified according to their major occupancy as belonging to one of the Groups and Divisions listed in Table 3.1.2.1. of Division B. (3) For the purposes of Sentences (1) and (2), the occupant load shall be determined based on the floor area or the part of the floor area that contains the agricultural occupancy. (4) A building intended for use by more than one major occupancy shall be classified according to all the major occupancies for which it is used or intended to be used.

This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.

2.1.2.3.Small Farm Buildings permalink →

(1) Except as provided in Sentences (2) to (6), farm buildings not more than 3 storeys in building height and not more than 600 m² in building area used for major occupancies classified as Group G, Division 1, 2, or 3 agricultural occupancies shall conform to the requirements in the CCBFC NRCC 38732 “National Farm Building Code of Canada.” (2) Articles 1.1.1.2. and 3.1.8.1. and Subsections 3.1.4. and 4.1.4. in the CCBFC NRCC 38732 “National Farm Building Code of Canada” do not apply to farm buildings. (3) Except as provided in Sentence (4), in the CCBFC NRCC 38732 National Farm Building Code of Canada, references in Articles 1.1.1.3., 2.2.2.1., 2.2.2.2., 2.3.1.1., 2.3.2.1., 3.1.1.1., 3.1.1.2., 3.1.2.1. and 3.1.6.1. to the CCBFC NRCC 38726 “National Building Code of Canada,” are deemed to be references to Ontario Regulation 403/97 (Building Code), as it read on December 30, 2006. (4) The climatic values required for the design of farm buildings shall be in conformance with the climatic values provided in MMAH Supplementary Standard SB-1, “Climatic and Seismic Data.” (5) A farm building of low human occupancy having a building area not exceeding 600 m2 and not more than three storeys in building height is deemed to comply with the structural requirements of CCBFC NRCC 38732 “National Building Code of Canada,” if it is designed and constructed in conformance with MMAH Supplementary Standard SB- 11, “Construction of Farm Buildings.” (6) Where a floor area or portion of a floor area within a farm building is intended to contain a hazardous extraction operation involving cannabis, the floor area or portion of the floor area shall conform to the requirements of Article 2.2.8.9.

2.1.3.Definitions

2.1.3.1.Defined Terms permalink →

(1) Words that appear in italics are defined in Article 1.4.1.2. of Division A.

2.1.4.Classification of Farm Buildings by Major Occupancy

2.1.4.1.Classification permalink →

(1) Every farm building or part of a farm building shall be classified according to its major occupancy as belonging to one of the Divisions of Group G described in Table 2.1.4.1. (See Note A-2.1.4.1.(1)) (See also Note A-2.2.8.3.) Table 2.1.4.1. Classification of Agricultural Major Occupancies Forming Part of Sentence 2.1.4.1.(1) Group Division Description of Agricultural Occupancies G 1 High-hazard agricultural occupancies G 2 Agricultural occupancies not elsewhere classified in Group G G 3 Greenhouse agricultural occupancies G 4 Agricultural occupancies with no human occupants

This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.