Building and Fire Safety Guidance Library

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Advisories, directives, interpretations, and notices

Welcome to the Building and Fire Safety Guidance Library, a centralized resource maintained by the Office of the State Building Inspector (OSBI) and the Office of the State Fire Marshal (OSFM). This page provides access to all official Advisories, Directives, Interpretations, and Notices issued under Connecticut’s building and fire safety regulations.

These documents are designed to assist local building and fire officials, design professionals, contractors, and members of the public in understanding and applying state codes and standards consistently across Connecticut.

Use this library to find the latest guidance, clarify code requirements, and stay informed on important updates that affect building safety and fire prevention statewide.


Access Official Guidance Documents

Below you will find categorized links to official documents issued by the Office of the State Building Inspector and the Office of the State Fire Marshal. Each section provides current and archived materials for reference.

OSBI Advisories

Advisories communicate general information, updates, or clarifications on building and fire code topics. They may include notices of code adoption, procedural updates, or statewide guidance intended to promote consistency in enforcement.

2025

A-25-01 Condensate Disposal for Ductless Mini-splits

A-25-02 Building Official extended leave of absence and appointment

A-25-03 Building Official vacancy

A25-04 Temporary Warming and Cooling Shelters

 

2026

A-26-01 Large Family Child Care Homes

A-26-02 Unpermitted Conversions

A-26-03 Inoperable Elevators per Public Act 26-84

A-26-04 Authorization to Sign State Building Code Modification Applications & Appointment Letters

 

*This page has been archived in accordance with accessibility guidelines. Learn more about these guidelines.

The State Building Inspector has issued the following advisories on specific building code topics:

OSFM Directives

Directives establish official policies or procedures that must be followed by local building or fire officials. These are binding instructions intended to ensure uniform application of the Connecticut State Building Code and Fire Safety Code.

List and Link Directives

Archives

OSBI and OSFM Interpretations

Interpretations provide formal explanations of specific provisions within the Connecticut State Building Code (CSBC) or Fire Safety Code (CSFSC). These are issued to resolve questions of meaning or application raised by local officials or the public.

Accessibility Code - BOCA

*This page has been archived in accordance with accessibility guidelines. Learn more about these guidelines. Index of Accessibility Code Interpretations:
Code Section Interpretation Number Code Description State Building Code Edition
2003


1108.2 i-10-03 Toilet accessibility and adaptability 1999

2002


1103.1 i-16-02 Inaccessible mezzanine - goods & services 1999
1107.2.3 i-19-02 Accessible seating in mezzanine 1999
1107.4.2.1 i-22-02 Type A R-2 1999
2001

Chap.11 i-03-01 Van-accessible parking spaces in a garage 1999
1110.2 i-08-01 20% rule - alterations 1999
1105.1.1 i-17-01 Accessible parking R-2 1999
1107, 114 i-30-01 Substantial renovation or rehabilitation 1999
2000


103.1, 1107.4.2.3

 i-07-00 Townhouses, R-4 & accessibility requirements 1999
4.2.5.1 i-13-00 Electrical switches & receptacles & accessible reach range requirements 1999
1999


1110.2.1 i-29-99 Accessibility & the 20% application requirement 1999
1107.4.2 i-48-99 Changing accessible features within a condominium unit 1999
1107.4.1.1, 1107.4.2 i-39-99 Accessibility for R-2 dormitory suites with bath & kitchen facilities 1999
1107.4.2.1 i-54-99 R-2 townhouse unit & accessibility throughout the dwelling 1999

BOCA National Building Code

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Code Section Interpretation Number Code Description State Building Code Edition
2011


108.2; 108 i-05-11 Pool/spa rough stage & final inspections needed to obtain Certificate of Occupancy 1999
1621.1 i-08-11 Component design seismic bracing 2005

307.2.3.1 (IMC)
M1411.3.1.1 (IRC)

 i-11-11 Water-level monitoring devices
2008
1017.2 i-16-08 Means of egress
 1999
2007
1014.11.2 i-02-07 Exit enclosure penetrations
 1999
705.2 i-08-07 Rated structural elements in exterior wall
 1999
2006
1006.2.1; 1006.4 i-4-06 Means of egress
 1999
1021.2 i-7-06 Guard height 1999
713.2 i-17-06 Rated joints 1999
2005

714.2.1 i-2-05 Vent penetrations 1999
2004

1512.0 i-2-04 Roof coverings 1999
308.1; 308.2 i-3-04 I-2 vs R-2 use group
 1999
113; 118 i-5-04 Certificate of occupancy issuance 1999
505 i-7-04 Mezzanine calculation 1999
407.0 i-8-04 Private garages in multiple single family
 1999
420 i-11-04 Demolish mobile home
 1999
421.10.1 i-12-04 Pool barrier hinges 1999
716 i-14-04 Exterior structural member rating 1999
2003
1014.11 i-3-03 Stair enclosure 1999
1614.0; 3408.2.4 i-4-03 Seismic for repairs
 1999
3404.2 i-5-03 Existing roof loads 1999

i-8-03 Language of a statute 1999
1108.2 i-10-03 Toilet accessibility and adaptability 1999
118.3 i-11-03 Inspections 1999
803.2 i-12-03 Wood in Type 2C construction
 1999
3405.1 i-15-03 Home Office 1999
1606.2.3 i-17-03 Truss bottom chord loads
 1999
114.3 i-19-03 Threshold limits 1999
118.3 i-20-03 Temporary vacancy 1999
310.5 i-21-03 Fire separation in multi-single family 1999
114.2.2 i-23-03 Payment of special professional services
 1999
2002

3404.2 i-5-02 Roof covering – drainage
 1999
1005.5 i-8-02 Recessed garage pits - safety concerns
 1999
1024.1 i-11-02 Means of egress lighting
 1999
1010.2, 1010.3, 1017.2 i-12-02 Spaces with a single means of egress
 1999
102.2 i-15-02 Existing pool barrier 1999
1103.1 i-16-02 Inaccessible mezzanine - goods &services 1999
421.10.1, 421.10.3 i-17-02 Pool barrier - climbability 1999
Chap. 34, 3408.2.4 i-18-02 Change of use/occupancy 1999
1107.2.3 i-19-02 Accessible seating in mezzanine 1999
1103.1 i-21-02 Kennel accessibility
 1999
1107.4.2.1 i-22-02 Type A R-2 1999
2001

105.4 i-2-01 Inspection reports submitted by individuals not licensed to perform such inspections 1999
Chap. 11 i-3-01 Van-accessible parking spaces in a garage
 1999
1007.3 i-4-01 Elevator lobbies 1999
Table 302.1.1 i-6-01 Boiler and furnace room doors
 1999
1110.2.1 i-08-01 20% rule – alterations
 1999
111.1 i-09-01 Requirements for a permit
 1994
1405.5 i-10-01 Brick veneer [ACI 530/ASCE 5/TMS 402-95]
 1999
100.4, 103.2, 104.1 i-13-01 Public safety general welfare 1994
114.1, 114.1.1 i-14-01 Architect's seal 1999
107.1 i-15-01 Skateboard ramp
117.3 i-16-01 Prosecute violation
 1999
1105.1.1 i-17-01 Accessible parking R-2 1999
707.0 i-18-01 Existing fire wall 1999
Chap. 11 i-19-01 Language clarification 1994
404.4, 404.5, 713.3 i-20-01 Atrium without smoke control 1999
111.3 i-21-01 Structural failure 1999
117.2, 118.1, 120.3 i-22-01 Prosecution for working without a building permit
 1994
421.1 i-23-01 Pool depth and water system exemptions for inflatable swimming pools
 1999
117.0 i-24-01 Prosecute violation
 1999
407.09 i-26-01 Private garage floors 1999
Chap. 1 i-27-01 Radio towers and associated antennae
 1999
118.0 i-28-01 Stop work order 1994
117 i-29-01 Code enforcement 1994
1107, 114 i-30-01 Substantial renovation or rehabilitation
 1999
2000

904.1, 904.8 i-01-00 Possible conflict between code sections when applying to project re hotel sprinklers 1999
1301.1 i-02-00 MEC; 101.4 & ASHRAE; 101 & exemption of special support spaces
 1999
108.1 i-03-00 Foamseal F2100 product acceptable alternative method of attachment
 1999
3408.6.11 i-04-00 Change of occupancy, R2 to R3 & requirement for window replacement
 1999
103.1 i-08-00 Residential identification of hazardous locations for glazing 1994
3105.4 i-10-00 Awning material & flame-resistant code requirement
 1999
2801.2 i-11-00 Residential fuel tank installation requirements
 1999
1107.4.2.1 i-12-00 Applicability of “substantially renovated & rehabilitated”
 1999
1205.2 i-14-00 R3 & R2 residential bathrooms & exhaust requirements 1999
114.3 i-15-00 Special provisions of threshold limits & application to existing buildings

1999
302.1.1.1 i-16-00 Gypsum wallboard used as smoke partitions
 1999
1012.0 i-19-00 Standpipes 1999
603.0 i-21-00 Use of combustible wood siding 1999
421.10.1 i-22-00 Use of wire mesh fencing barrier for swimming pool, spa or hot tub
 1999
421.10.1 i-23-00 Pool barrier door alarm 1999
107.9 & 108.1.1 i-24-00 Amount of time permit applicant has to complete an action; amount of time bldg. Official has to act on an application
 1999
401.4.3 & 401.4 i-26-00 Use of plastic pipe 1994
507.1 i-27-00 Fully sprinklered existing buildings
 1999
1014.6.2 i-28-00 Stone stair construction tolerances
 1999
1110.2.1 & 1107.4.2.1 i-30-00 Alterations affecting the primary function areas
 1999
302.1.2 i-31-00 Exemption of accessory areas to accessibility provisions for new construction
 1999
Chap. 1 i-32-00 Stop work order 1999
310.0 i-33-00 Differentiation between accessory (in-law) apartments & 2 family dwellings 1999
105.7 i-35-00 Local bldg. official’s retention of construction documents for single family dwellings & outbuildings
 1999
403.9.1.3 i-36-00 Eight story bldg undergoing change of use (R2 to R1) 1999
117.0 i-37-00 Building code definitions 1999
1610.0 i-39-00 Seismic hazard exposure group
 1999
3107.0 i-40-00 Flood resistive construction
 1999
421.10.1 i-41-00 Pool barriers utilizing raised terrace 1999
310.6 i-44-00 Calculating sq. ft. area per floor & open riser
 1999
107.0 & 108.0 i-46-00 Permits & licensing 1999
102.2 i-48-00 Electrical renovations 1999
114.3 i-52-00 Threshold height re: mechanical equipment
 1999
1017.2 i-53-00 Mechanical egress 1999
1022.2 i-54-00 Handrail clearances; comparison to CABO/ANSI A117.1
 1999
3405.1 i-55-00 Use Group M sprinklers & change of occupancy
 1999
3404.2 i-56-00 Renovations to existing buildings
 1999
505.4 i-57-00 Mezzanine openness 1999
Chap. 1 i-58-00 Statute questions 1999
1806.1 & 1812.1 i-63-00 Frost protection – mini-storage building 1999
108.1 i-66-00 Zoning sign-off - waste disposal
 1999
107.1 i-67-00 Removal of building by burning
 1999
1021.3 i-69-00 Pipe guard rails 1999
412.2 i-72-00 Definitions of platform and stage
 1999
117.2, 117.3, 111.1,
118.1, 118.2		 i-73-00 Administrative procedures re violations, stop work orders 1999
1110.2.1, 3404.2 i-74-00 Changing existing door hardware in a partial renovation 1999
502.1 i-75-00 Definition of one structure 1999
1999

Table 305.2 i-3-99 Use group for a typical take out pizza & donut store/shop configuration
 1994
101.1.1 i-4-99 Uniform implementation of the CT State Building Code
 1994
204.4, 201.1 i-5-99 Building official right to enter garages, porches & CGS 29-393, 29-261d 1994
117.3, 2303.2 i-8-99 Building official instituting proceeding of law; permit requirement for roof shingling
 1994
111.3, 111.8, 112.6 i-9-99 Application of permit designee, applicant & authorization from owner
 1994
117.3 i-10-99 Does CT State Building Code allow building official to attain legal services? 1994
Article 21 i-11-99 Permit for wood clapboard siding 1994
111.1 i-13-99 Activities which need a permit. Work being done without a permit
 1994
118.1 i-15-99 Building official using sheriff to serve a stop work order 1994
104.1 i-16-99 Specific words requesting definitions 1994
114.1 i-17-99 Must an official accept documents prepared by an architect
 1999
702, 705 i-19-99 Code intent with regard to fire separation distances 1994
Chap. 3 i-20-99 Use group for an assisted living facility, use group R-2 or use group I
 1999
904.3, 3103.3.1 i-21-99 Riding arena use group, construction type & membrane structure concerns
 1999
315.2 i-23-99 Handrails & equivalent graspability of BOCA Section 1022.2.4 & CABO
 1999
114.1.1 i-25-99 Intent of code with respect to services of an architect or an engineer 1999
103.1 i-26-99 Code to utilize when residence work exceeds CABO section requirements
 1999
120, 103.1, 103.3 i-28-99 1999 CT State Building Code reuse of an existing stone foundation 1994
1017.4.5 i-30-99 Electro-magnetic lock on egress doors
 1999
310.1 i-32-99 Right of entry 1994
1005.9 i-33-99 Requirement for guardrails
 1999
110.1.1 i-34-99 Building official’s right to entry
 1994
Table 401 i-38-99 Steel beams & fireproofing of Type 1A construction
 1999
507.2 i-40-99 Adjacencies of unlimited building areas & fire walls
 1999
403.1 i-41-99 High-low drinking fountains & plumbing fixture count code requirements 1999
302.1, 308.3.1,
308.5.1		 i-42-99 Use group for adult day care facility with occupants incapable of self-exiting
 1999
Table 503.0 i-47-99 Intent of code height limitations & areas of stories below grade
 1999
507.1.1 i-57-99 Unlimited area requirements for use group
 1999
112.3.1 i-58-99 Formula for charging municipal building permit fees 1999
1103.1, 1104.2 i-62-99 Mezzanine access 1999
1705 i-64-99 Special inspector & engineer of record
 1999
1507.4.3 i-66-99 Number of fasteners required for asphalt strip roof shingles to meet basic wind speeds
 1999
716.2 i-68-99 Braced structural frames & fire resistance rating requirements 1999
2203 i-70-99 Leaded glass panels & exemption classification 1999

CABO Energy Code

 

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Code Section Interpretation Number Code Description State Building Code Edition
2018
i-04-18 Replacing existing furnace w/out ductwork insulation
2002


502.1.1 i-20-02 Chap.5 Component Performance Approach
 1999
2001

504.5.3, 604.1.2.3 i-25-01 Pool pump time clocks
 1999
2000

101.4 i-02-00 MEC;101.4 & ASHRAE; 101 & exemption of special support spaces
 1999
403.2.8 i-70-00 Economizer Controls-Codification of ASHRAE/IES 90.1-1989
 1999
1999


403.2.9.2 i-53-99 Ducts in unconditioned space insulation requirements 1999

CABO 1 and 2 Family Code

 

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Code Section Interpretation Number Code Description State Building Code Edition
2005
322.1; 303.3; 320.2; 703.1 i-1-05 CABO questions 1999
2004


i-4-04 Bridges docks 1999
i-6-04 Habitable attic 1999
2003

309.2 i-1-03 Garage separation 1999
2611.2 i-2-03 Fuel gas tank location 1999
Table 404.1.1a i-7-03B CABO foundation and retaining walls
 1999
403.1 i-9-03 Deck frost protection 1999
309.2 i-13-03 CABO garage ceiling protection
 1999
602.3 i-16-03 CABO wall bracing
 1999
301.4, 802.10 i-17-03 Truss bottom chord loads
 1999
316 i-18-03 CABO Smoke detectors 1999
320.2 i-21-03 Fire separation in multi-single family 1999
2101.3 i-22-03 CABO reline chimneys 1999

2002

Tables 301.4, 502.3.1b,
802.4 (a-d)		 i-2-02 Attic loads 1999
303.6 i-3-02 Unvented room heaters
 1999
316.1 i-6-02 Smoke detectors
 1999
303.3 i-7-02 Existing bathroom window
 1999
1005.5 i-8-02 Recessed garage pits - safety concerns 1999
602.7 (4), 602.7.1 i-9-02 Mineral wool firestopping
 1999
315.1 i-10-02 Existing stairway handrail 1999
2001

3215.2 i-01-01 Pressure balance, thermostatic mixing or combination type valves that
limit water temp in bathtubs or whirlpool tubs that are not equipped with a shower		 1999
3104 i-5-01 Diameter of crushed rock for bedding DWV pipe
 1999
CGS Sec. 16-1 i-7-01 Installation of equipment for LP gas systems and oil burning equipment
 1999
1606.0 i-21-01 Structural failure 1999
309.3 i-26-01 Private garage floors
 1999
2000

320.1 i-5-00 Explain differences in construction & fire rating of dwelling units 1999
215.1 i-06-00 Requirements for guardrails
 1994
108.1 i-25-00 CABO retaining walls
 1999

i-44-00 Calculating sq. ft. area per floor & open riser
 1999
314 & 315 i-49-00 Basement hatchways
 1999
Chap. 4 i-50-00 Building Official's use of engineer
 1999
308.4 i-59-00 Safety glazing in room containing a hot tub
 1999
703.4 i-60-00 Aluminum coil stock used as siding 1999
2608.2.3 i-64-00 Gas pipe in clean-out of masonry fireplace
 1999
314 & 315 i-71-00 Basement hatchways
 1999
1999

120.1 i-1-99 Building with broken windows & applicability of CT State Building Code
 1994
1006.1 i-31-99 New masonry fireplace requirement for exterior air supply
 1999
308.4 i-43-99 Safety glazing 1999
1307.3 i-44-99 Can combustion air be taken within a garage for an appliance
 1999
903.4.1 i-50-99 Number of fasteners required for asphalt strip roof shingles
 1999
308.4, #5 i-55-99 Safety glass requirements & shower door & window elements
 1999
903.4.1 i-60-99 Number of fasteners required for asphalt strip roof shingles
 1999
Appendix A i-61-99 Manufactured housing code recognition & Building Official authority to inspect
 1999
903.4 i-66-99 Number of fasteners required for asphalt strip roof shingles to meet basic wind speeds
 1999

Electrical Code

 

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Code Section Interpretation Number Code Description State Building Code Edition
2022
334.40(B) i-02-22 Lighting Fixture Repair 2017
2020
110.16 i-05-20 Arc-Flash Hazard Warning 2017
2019
210.12(D) i-11-19 Fixture Replacement 2017
2018
i-08-18 Temporary Service above Flood Elevation
240.21 i-09-18 Meter Disconnection 2017
2017
210.52(D) i-04-17 NFPA 70 Electrical Code 2014
2016
i-01-16 CSST Bonding 2014
210.12 i-02-16 Arc-Fault Breakers NEC 2014
2015
Article 690 i-07-15 Grounding of Solar Photovoltaic (PV) Systems 2005
690.35 i-08-15 Grounding of Solar Photovoltaic (PV) Systems
 2005
2014


E3608.1 i-05-14 Grounding Electrode System
 2005
210.12(A) i-08-14 Arc-Fault Circuit Interrupter (AFCI) protection
 2005
2012


702.5 i-12-12 Load calculations provided to building official when installing a generator
 2005

i-16-12 Bonding and grounding of existing electrical service when installing a generator
 2005
250.104(A) i-24-12 Metal water piping systems 2005
2011


Article 100 & 230.70(A)(2) i-01-11 Definition of a bathroom 2005
210.12(B) i-06-11 Arc-fault protected smoke detectors
250-24 i-09-11 Grounding service-supplied alternating current systems
 2005

i-25-11 Grounding fixed-in-place generators
 2005
2010


Article 110.26(A) i-02-10 Transformer working space clearance 2005
Article 210.70(A)(3) i-03-10 Entry switch location (attic, basement, underfloor storage area)
 2005
2009

Article 680.23 & 680.33 i-04-09 Spa/hot tub underwater light fixtures; Use of NM cable (Romex)
 2005
Article 250.50 i-07-09 Rebar in footings or foundations 2005
2008


406.8 (C) i-10-08 Electrical receptacles near tubs, spas, hot tubs, shower stalls, etc.
 2005
2007
422.31(A);
422.31(B);
422.10;
422.32		 i-20-07 HVAC disconnects 2005
2006

400.8(1)(2) i-19-07 Flex cord above kitchen ceiling
 2005
2005


210.5 i-5-05 Two family service upgrade 1999
680.23; 680.33 i-9-05 Spa and hot tub lights 1999
2004

110-3(a)(1) i-1-04 Electrical staples 1999

210-52(d)

 i-9-04 Vanity outlets 1999
300-22 i-10-04 Classification of underfloor space
 1999
E3802; E3703.4 i-15-04 IRC electrical 1999
210.25 i-18-04 Two family house meter 1999
2003


230-50(a) i-6-03 Physical damage 1999
210-52(a) i-7-03A Sunroom outlets 1999
2002


300-22(c)(2) i-1-02 Metal electrical enclosure above ceiling
 1999
705-22(1) i-4-02 Electrical access to disconnect
 1999
550-23(b)(1) i-14-02 Electrical service on manufactured home 1999
2001


Article 680 i-11-01 Spa and hot tub disconnects 1999
2000

Sec. 90-4 i-48-00 Electrical renovations 1999
210-70(a)(3) & 210-70(c) i-51-00 Attic lighting 1999
700-12(b)(3) i-65-00 Generator off site fuel supply
 1999
Table 300-5 i-68-00 Use of non-metallic conduit (schedule 40 PVC) near forklifts 1999
1999


300-11(a) i-12-99 Supporting requirements of EMT or a rigid metal conduit 1999
3404.1 i-24-99 Questions on gas piping & bonding of electrical work
 1999
210-70(a)(2) i-46-99 Residential basement, hatchway & illumination requirements
 1999
702.6 i-51-99 Code intent for a Kirk key lock out system
 1999
250-50(a)(2) i-56-99 Grounding & supplemental rods on municipal water system
 1999
Various NEC 422-33 NEC Interpretations 1999

General Code

 

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Code Section Interpretation Number Code Description State Building Code Edition
2015


i-01-15R Recycling center classification
 2005

i-02-15 Interior stairway within R-1 Bed & Breakfast
 2005

i-03-15 Customer counter height 2005
2012

Chap. 10 i-08-12 Unoccupied mechanical space
 2005

i-21-12 Permit for underground gas tank replacement
29-263 i-23-12 Penalty or fee for failing to obtain building permits prior to commencing work on a single family dwelling
 2005
2011


i-02-11 "BL1" product

i-18-11 Building permit valuations

i-19-11 Section R-103 1994
2009


NFPA 13 i-17-09
i-17-09R		 Noncombustible building construction material
CGS 29-282 i-20-09 Electric service to natural gas company unmetered services
 2005
2008

14-311(b) i-9-08 Interpretation of Connecticut General Statutes
2006



i-3-06 Interpretation of Connecticut General Statutes

i-5-06 Service notice 1999

i-6-06 Sever stop work 1999
2000


i-42-00 Location of statutory reference

i-45-00 Legal title of building code

i-62-00 Request for definition of construct/alter
1999



i-2-99 Interpretation of State Building Code
 19994

i-6-99 Licensure of building official & subclasses
 1994

i-7-99 Code enforcement 1994

i-14-99 Building permit requirements

ICC A117.1 Code

 

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Code Section Interpretation Number Code Description State Building Code Edition
2017
703.6.3.1 i-12-17 Dynamic symbol of Access 2016
2007


1003.3; 1004.3.3 i-06-07 Type AB closets and baths
 2005
1003.3.1 i-07-07 Type A accessible route
 2005
1004.12.2.1;
1004.12.2.2		 i-10-07 Type B kitchen sinks
 2005
1004.9 i-19-07 Countertop height in Type B DU
 2005

International Swimming Pool and Spa Code

Chapter 02 Definitions

I-26-01 202 Existing Pool Definition

 

International Building Code (IBC)

 

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Code Section Interpretation Number Code Description State Building Code Edition
2024
703.2.1 i-04-24 Fire Walls 2022
2023
1107.2.2 i-05-23 Accessible EV parking spaces 2022
1106.3, Item #3 i-02-23 R-2 Use accessible parking 2022
2022
907.2.9 i-05-22 R-2 Visible fire alarms 2018
903.8.2 i-04-22 R use expansion sprinklers 2018
105.2 i-01-22 Permitting cell towers 2018
2020
1103, 1104 i-09-20 Accessible Routes 2018
1030.1 i-08-20 Emergency Escape and Rescue Openings 2018
3108, 1609 i-07-20 Communication Tower Structural Design 2018
102.1.1 i-06-20 Energize Connecticut Whole Building Performance Program 2018
706.6.1 i-03-20 Parking Garages 2018
105.2.3 i-02-20 5G Radio Transmission Equipment 2018
2019
Chapter 9 i-13-19 State Building Code Application to Non-Required Sprinkler Systems 2018
109.3 i-03-19 Permit Value 2018
Chapter 105 i-02-19 Building Permits 2018
2018
118 i-10-18 Temporary Vacant 2016
1613.1 i-02-18 Seismic Bracing for Sprinkler Piping 2012
2017
713.14.1, 1008.1.9.9 i-10-17 Elevator Lobby and Electromagnetically locked doors
1504.5 i-07-17 Roof Edges 2016
3404 i-05-17 Acceptable Loading of Existing Structures 2016
2016
507.2, Ex. 2 i-03-16 Type IIB cable-restrained air supported structure 2003
2015

1023.6 i-05-15 Egress discharge 2005
2012

1021.1 i-03-12 Egress door width 2005
1009.11.4 i-04-12 Handrail continuity 2005
716.2 i-07-12 Annular space between fire damper and wall or floor
 2005
1109.2.4 i-09-12R Grab bars within toilet rooms
 2005
1103.2.15 #2 i-10-12 Fire department facility accessibility
 2005
2011


602.4.3 i-03-11 Heavy timber construction
 2005
1107.2 i-04-11 Accessible doorbells 2005
602.4.3 i-07-11 Research reports 2005
1621.1 i-08-11 Component design seismic bracing
 2005
105.3.3 i-22-11 Permit ownership-belongs to the land or landowner? Permit status re change of contractor
 2005
2010


1013.2.2 i-01-10 Egress access 2005
105 i-04-10 Shipping containers with habitable/occupiable space 2005
2702.2.20 i-05-10 Electric fire pumps 2005
Table 1607.1.4 i-06-10 Platform use 2005
310.1 i-08-10 Change of use re more than 3 unrelated people in a single family dwelling
 2005
311, 406, 1007 i-09-10 Parking garages 2005
1011 i-12-10 Accessibility exit signs
 2005
1013.2 i-13-10 Means of egress 2005
1103.2.2; 3409.3 i-15-10 Change of group or occupancy
 2005
1008.1.8.3,
1008.1.9		 i-16-10 Use of key operated device in assemble (A3)
 2005
2009


2902.1 i-03-09 Filling station water dispenser
 2005
105.2 i-05-09 When is building permit required and related exemptions
 2005
1019.1.2 i-06-09 Stair penetrations 2005
3109 i-10-09 Swimming pool replacement
 2005
Table 1607.1.4 i-11-09 Stages and platforms 2005
105.1 i-15-09 Replacement windows 2005
1013.3 i-21-09 Egress travel measurement 2005
Table 1607.1.4 i-22-09 Stages and platforms 2005
105.3.1.2;
105.3.1.1;
105.3.1		 i-23-09 Fire Marshal permit approval; Zoning approval; Permit application time limit for Building Official/Fire Marshal's written decision
 2005
1109.2.5 i-24-09 Lavatory fixture location
 2005
3303.7 i-25-09 Demolition code as it applies to Building Officials
 2005
2008


1006.3 i-01-08 Means of egress lighting outdoor bleachers
 2005
1023.5.1;
1023.5.2		 i-02-08 Egress court width & rating 2005
711.4 i-03-08 Rated wall ceiling joint-wood frame
 2005

i-04-08 Installation of sprinkler heads in unfinished basement (8.2.1.3 & 8.2.5 of 2002 Edition of NFPA 13D)
 2005
106.1.5 i-13-08 Threshold limit for parking structure
 2005
2902.6 i-14-08 use of portable toilet facilities
 2005
1009.1 i-15-08 Stair width and occupant load
 2005
3409; 3406 i-18-08 Accessibility for existing buildings and change of occupancy
 2005
1614.1 i-19-08 Seismic design 2005
1106.1.1; 1106.6 i-20-08 Location of accessible parking spaces
 2005
1009.11.2 i-22-08 Intermediate handrail required for egress stair
 2005
714.2.6 i-25-08 Fire resistance rating 2005
105.5 i-27-08 Building permit extensions
 2005
106.1.5.1 i-29-08 Code application permit requirements as it relates to contractors
 2005
2007


1107.6.3.1 i-01-07 Townhouse Type B 2005
1019.1.2 i-02-07 Exit enclosure penetrations 2005

1011.1.1;
1011.1.1.1;
1011.1.2

 i-03-07 Floor proximity exit signs 2005
1107.7.2.1 i-07-07 Type B laundry electrical panel
 2005
704.5 i-08-07 Rated structural elements in exterior walls 2005
1503.5 i-11-07 Ridge vents 2005
110.1.2 i-12-07 Certificate of Completion without zoning approval
 2005
110.1.2 i-13-07 Main exit 2005
1024.2 i-14-07 Permit for lot line move
 2005
3406.1.1 i-15-07 Change of occupancy-mixed use

2005
901.2; 901.6 i-16-07 Monitor non-required sprinklers
 2005
907.9.3 i-18-07 Automatic alarm transmission
 2005
302.3; 303.1.1 i-21-07 Mixed occupancies non-separated
 2005
1621.1 i-23-07 Seismic restraint for gas piping
 2005
2006


419.1.1 i-1-06 Level of exit discharge
 2005
105.3.3 i-9-06 Who may apply for permit 2005
1504.5 i-10-06 Revised Low slope roofing edge securement
 2005
302.1 i-11-08 Fire house/fire station use group designation
 2005
1023.3 i-12-08 Means of egress 2005
1107.6.2.1.1 i-15-06 Type A in non-elevator buildings
 2005
506.4 i-16-06 Maximum building area
 2005
1109.2.5 i-21-06 Lavatory reach range
 2005
2005


506.4 i-15-05 Allowable area calculation
 2005

International Energy Conservation Code (IECC)

 

*This page has been archived in accordance with accessibility guidelines. Learn more about these guidelines.

Code Section Interpretation Number Code Description State Building Code Edition
2018
402.4.6 i-05-18 Loading Dock Weather Seals 2012
2017
i-13-17 Oil Boiler Sizing
102.1 i-01-17 Acceptance of Whole Building Performance Program 2016
2014


101.4.3 i-11-14 Replacement of water heater & furnace
 2005
2012


403.2.2 i-14-12 Duct tightness verification & testing
 2005
2011

402.4.3 i-23-11 New wood burning fireplaces to have gasketed doors and outdoor combustion air
 2005

International Existing Building Code (IEBC)

 

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Code Section Interpretation Number Code Description State Building Code Edition
2024
306.5, 306.7.16.7 i-01-24 Type B Units in Historic Buildings 2022
2019
407.13.1.4 i-12-19 I-2 Group Home 2018
102.1, 101.4.7 i-04-19 Alterations, change of occupancy, addition, and relocation 2018
2012


903.2.7 i-20-12 Fire suppression system
 2005
2008


703.2.1 i-28-08 Change from single family to two family dwelling unit
 2005
2006

29-292-14e;
29-292-15e		 i-11-06 Connecticut Fire Safety Code (CFSC) and International Existing Building Code (IEBC)
 2005
505.2; 812.3 i-25-06 Change of occupancy MOE
 2005

International Residential Code

 

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Code Section Interpretation Number Code Description State Building Code Edition
2024
i-02-24
R507 i-03-24 Techno Metal Posts 2022
i-05-24
2023
R302.1, R302.2.2, Table R302.1(1) i-01-23 Fire separation requirements 2022
2020
i-01-20
i-10-20
2019
i-02-19 Permits for Appliances 2018

i-05-19 Two dwelling buildings 2018
R109.1, R110.1 i-06-19
R401.3.1 i-07-19 Drainage nuisances 2018
R905.1.1 i-08-19 Roof underlayment systems 2018

i-10-19 One-family dwelling 2018
R310.1 i-14-19 Emergency escape and rescue openings required 2018
2018
308.3.1, 308.4.1 i-01-18 Care definition 2016
R905.1.1 i-06-18 Roof Underlayment Systems 2018
M2201.7 i-07-18 Tank abandonment and removal 2018
2017
R101.2 i-02-17 2016
M1801.1, G2425.15, G2426.1, G2427.4.1 i-03-17 Plastic piping for venting gas fired equipment 2016
R501.3 i-06-17 Fire protection of floors 2016
R301.2.1.2 i-08-17
E3608.1 i-09-17 Steel reinforcing bars 2016
R108.6, R105.2, R103.1, R103.3 i-11-17 Work exempt from permits 2016
R1001.10 i-14-17 Hearth Extension Dimensions 2016
N1102.4.1.1 i-15-17 Acceptable air barriers behind showers & tubs 2016
2015


R316.4, R702.3.4 i-04-15 Foam plastic insulation foundation walls
 2005
2014


R104.11 i-06-14 Gas conversion burners
 2005
G2443.1 i-07-14 Gas conversion burners 2005
R302.2 i-09-14 Fire separation wall penetration
 2005
R314 i-10-14 Smoke alarms in 1 & 2 family dwellings
 2005
M1202.1, P2502.2 i-11-14 Replacement of water heater & furnace
 2005
2012


R105.1 i-01-12 Permits for single-family dwelling
 2005
R316.4 i-02-12 Spray foam insulation 2005
P2803.1 i-05-12 Temperature/pressure relief valve
 2005
R303.4.1 i-13-12 Generator distances from 1 & 2 family dwellings and townhouses 2005
R314.1.2 i-15-12 Thermal barrier 2005
AG105.2 i-22-12 Design of barriers for residential swimming pools, spas & hot tubs
 2005
R105.1 i-23-12 Penalty or fee for failing to obtain building permits prior to commencing work on single family dwelling
 2005
2011


M1411.3.1.1 i-11-11 Water-level monitoring devices
 2005
R102.7 i-14-11 Pool barrier replacement
 2005
R317.3 i-20-11 Rated penetrations 2005
907.3 i-21-11 Removal of existing single layer roofing to install underlayment or provide ice and water shields
 2005
2010


R104.11, R104.11.1,
R104.11.2, R308.8		 i-14-10 CT Registered Professional Engineer re geothermal air conditioning and heating system
 2005
2009


AG105 i-10-09 Barrier for swimming pool
 2005
317.2 i-13-09 SE feeder cable penetrations
 2005
R105.2 i-16-09 Building permit for residential awnings
 2005
R311.2.1 i-19-09 Single family dwelling ramp anchorage
 2005
R309.2 i-27-09 Garage definition 2005
2008


AG105.2 i-17-08 Fencing barrier for swimming pools, hot tubs and spas
 2005
AG105.2 i-21-08 Pool barrier 2005
R105.3.1, R105.3.2 i-24-08 Submission of construction documents to local building official
 2005
R317.1 i-26-08 In-law apartment & two-family dwellings
 2005
R317 i-28-08 Change from single family to two family dwelling units 2005
M1305.1 i-30-08 Access to appliances 2005
R104.11, AG106.4 i-32-08 Standards for spas, equipment assemblies & associated equipment; Dual drain separation distance
 2005
2007


R401.3 i-09-07 Surface drainage 2005
R806 i-11-07 Ridge vents, attic ventilation
 2005
R110.1.1 i-12-07 Certificate of Completion without zoning approval
 2005
R105.1 i-14-07 Permit for lot line move
 2005
AG106 i-24-07 Entrapment avoidance 2005
R314.2.3; R318.1 i-25-07 Spray foam insulation thermal barrier & vapor barrier
 2005
2006


R802.3.1 i-2-06 Rafter span adjustment and structural ridge 2005
R311.5.8.1 i-12-06 Spiral stair width '05 State Building Code
 2005
R310.1; R310.3;
R311.5.8.2		 i-14-06 Basement rescue openings
 2005
AG105.2 i-22-06 Pool barriers vertical/horizontal members 2005

i-23-06 Outdoor wood furnaces
 2005
R317.2 i-24-06 Mechanical in townhouse separation wall
 2005
2005


Chapter 39 i-3-05 Switch locations 1999
R311.6 i-4-05 Temporary or portable ramps
 1999
R101.2 i-10-05 Step repair 1999
R301.5 i-11-05 Truss attic live load 1999
R301.2 (1) i-12-05 Frost protection-unheated garage
 1999
R105.1; R110.1 i-16-05 Permits and CO's 1999
2004


M1307.3 i-13-04 Elevation of ignition source
 1999
E3802 i-15-04 IRC electrical 1999
R301.2.1.1 i-16-04 IRC high wind issues 1999
Chapter i-17-04 Applicable permit after code change
 1999

Mechanical Code

 

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Code Section Interpretation Number Code Description State Building Code Edition
2018
1202.4, 1202.5, 1203.3.3 i-18-03 Use of Copper Tubing for Low Pressure Steam 2012
2011


i-16-11 Venting system calculation
 2005
2009

116.9 i-12-09 Vibration transmission by contact 2005
2006


507.2 i-8-06 Commercial cooking hoods
 2005
2003


2611.2 i-2-03 Fuel gas tank location 1999
2002


926.1 i-3-02 Unvented room heaters
 1999
2000


1304.18 i-09-00 Need for Bldg Official inspection of existing inactive gas piping system
 1999
102.4 i-17-00 Additions, alterations, renovations or repairs to a mechanical system
 1999
801.19 i-29-00 Venting through an existing chimney
 1999
403.2, 403.3 i-34-00 Air quality 1999
1999


106.5.1 i-27-99 Permit fine/General Administration
 1999
510.2 i-36-99 Hazardous exhaust systems with NFPA 45 ventilation system
 1999
1107.4.4 i-37-99 Copper tube joints & refrigeration systems
 1999
1006.7.7 i-45-99 Installation of flow detection switch on residential hot water boiler
 1999
606.2.1 i-52-99 Smoke detectors in return ducts of air handlers moving >2000 cfm
 1999
803.2.9 i-63-99 Masonry chimney & determination of interior/exterior status
 1999

Plumbing Code

 

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Code Section Interpretation Number Code Description State Building Code Edition
2022
802.1.5 i-03-22 Non-potable clear-water waste 2018
2020
803.1 i-04-20 Gas Furnace Condensate Neutralization Requirements 2018
2019
403.3.3 i-09-19 Toilet Facilities for Temporary Structures 2018
2011


608.6.4; 608.16.6 i-13-11 Reduced pressure backflow preventer (RPD)
 2005
2010

403.6 i-11-10 Plumbing fixture count
 2005
2009


410.1 i-03-09 Filling station water dispensers
 2005
410.1 i-14-09 Use of water coolers 2005
608.16.4 i-18-09 Double check valve assembly vs backflow preventer
 2005
2006


1002.4 i-18-06 Trap seal vs primer
 2005
106.4 i-9-06 Who may apply for permit 2005
1106.1 i-13-06 Site drainage design
 2005
2005


106.1 i-13-05 Storm water drainage and sanitary
 1999
2003

106.1 i-14-03 Swimming pool piping 1999
2000


608.16.4 i-38-00 Reduced pressure principal backflow preventer
 1999
412.5 i-43-00 Discharge of floor drains
 1999
1002.1 i-47-00 Floor drain traps 1999
1999


404.4 i-18-99 Requirement for additional swing away grab bar in R use group
 1999
106.5.1 i-27-99 Permit fine/General Administration
 1999
1003.6 i-49-99 Oil separator for floor drain, sump pump in base of elevator shaft
 1999
404.4 i-59-99 Requirement for additional swing away grab bar, all use groups
 1999
404.5 i-67-99 Faucets of Type A dwelling units, do they comply with ANSI regulations
 1999
1107 i-69-99 Scupper roof detail & overflow roof drain requirements
 1999

Fire Prevention Code (CSFPC)

Fire Safety Code (CSFSC)

OSBI and OSFM Notices

Notices are sent, from the State Fire Marshal called "General Information Notices" (GIN) and the State Building Inspector called "Technical Office Notice for Information and Clarification" (TONIC), to inform stakeholders of important events, proposed changes, or other time-sensitive information relevant to building and fire safety.

General Information Notices (GIN)

General Information Notices (GIN) issued by the State Fire Marshal.

Technical Office Notice for Information and Clarification (TONIC)

TONICs are issued by the State Building Inspector for informational and clarification purposes on how to apply the code in various applications.
TONIC 26-01: Elevator Hoistway Opening Protection Requirements