ICC I-CODE IZC-2018 I-Codes IZC - International Zoning Code.pdf

1、 2 0 1 8INTERNATIONAL CODESGet a free 45-day online subscription to ICCs premiumACCESS2018 I-Codes Complete Collection. Test drive many powerful, time-saving tools available to you from premiumACCESS. To activate your bonus, visit www.iccsafe.org/codebonus.2018 I-CODE BONUS OFFERINTERNATIONALZONING

2、CODEIZCA Member of the International Code Family2018 International Zoning CodeFirst Printing: August 2017ISBN: 978-1-60983-755-6 (soft-cover edition)COPYRIGHT 2017byINTERNATIONAL CODE COUNCIL, INC.Date of First Publication: August 31, 2017ALL RIGHTS RESERVED. This 2018 International Zoning Codeis a

3、copyrighted work owned by the International CodeCouncil, Inc. Without advance written permission from the copyright owner, no part of this book may be reproduced, distributedor transmitted in any form or by any means, including, without limitation, electronic, optical or mechanical means (by way ofe

4、xample, and not limitation, photocopying or recording by or in an information storage retrieval system). For information on userights and permissions, please contact: Publications, 4051 Flossmoor Road, Country Club Hills, IL 60478. Phone 1-888-ICC-SAFE (422-7233). Trademarks: “International Code Cou

5、ncil,” the “International Code Council” logo, “ICC,” the “ICC” logo, “International Zon-ing Code,” “IZC” and other names and trademarks appearing in this book are trademarks of the International Code Council, Inc.,and/or its licensors (as applicable), and may not be used without permission.PRINTED I

6、N THE U.S.A.2018 INTERNATIONAL ZONING CODEiiiPREFACEIntroductionThe International Zoning Code(IZC) establishes minimum requirements for zoning ordinances. This2018 edition is fully compatible with all of the International Codes(I-Codes) published by the Inter-national Code Council (ICC), including t

7、he International Building Code, International Energy Conser-vation Code, International Existing Building Code, International Fire Code, International Fuel GasCode, International Green Construction Code, International Mechanical Code, InternationalPlumbing Code, International Private Sewage Disposal

8、Code, International Property MaintenanceCode, International Residential Code, International Swimming Pool and Spa Code, InternationalWildland-Urban Interface Codeand International Code Council Performance Code.The I-Codes, including this International Zoning Code, are used in a variety of ways in bo

9、th thepublic and private sectors. Most industry professionals are familiar with the I-Codes as the basis oflaws and regulations in communities across the U.S. and in other countries. However, the impact ofthe codes extends well beyond the regulatory arena, as they are used in a variety of nonregulat

10、orysettings, including: Voluntary compliance programs such as those promoting sustainability, energy efficiencyand disaster resistance. The insurance industry, to estimate and manage risk, and as a tool in underwriting and ratedecisions. Certification and credentialing of individuals involved in the

11、 fields of building design, con-struction and safety. Certification of building and construction-related products. U.S. federal agencies, to guide construction in an array of government-owned properties. Facilities management. “Best practices” benchmarks for designers and builders, including those w

12、ho are engaged inprojects in jurisdictions that do not have a formal regulatory system or a governmentalenforcement mechanism. College, university and professional school textbooks and curricula. Reference works related to building design and construction.In addition to the codes themselves, the cod

13、e development process brings together building pro-fessionals on a regular basis. It provides an international forum for discussion and deliberationabout building design, construction methods, safety, performance requirements, technologicaladvances and innovative products.DevelopmentThis 2018 editio

14、n presents the code as originally issued, with changes reflected in the 2003 through2015 editions and further changes approved by the ICC Code Development Process through 2016. Anew edition of the code is promulgated every 3 years.This code is intended to establish provisions that adequately protect

15、 public health, safety andwelfare; that do not unnecessarily increase construction costs; that do not restrict the use of newmaterials, products or methods of construction; and that do not give preferential treatment to par-ticular types or classes of materials, products or methods of construction.i

16、v 2018 INTERNATIONAL ZONING CODEMaintenanceThe International Zoning Code is kept up to date through the review of proposed changes submittedby code enforcement officials, industry representatives, design professionals and other interestedparties. Proposed changes are carefully considered through an

17、open code development process inwhich all interested and affected parties may participate.The ICC Code Development Process reflects principles of openness, transparency, balance, dueprocess and consensus, the principles embodied in OMB Circular A-119, which governs the federalgovernments use of priv

18、ate-sector standards. The ICC process is open to anyone; there is no cost toparticipate, and people can participate without travel cost through the ICCs cloud-based app, cdp-Access. A broad cross section of interests are represented in the ICC Code Development Process.The codes, which are updated re

19、gularly, include safeguards that allow for emergency action whenrequired for health and safety reasons.In order to ensure that organizations with a direct and material interest in the codes have a voicein the process, the ICC has developed partnerships with key industry segments that support theICCs

20、 important public safety mission. Some code development committee members were nomi-nated by the following industry partners and approved by the ICC Board: American Institute of Architects (AIA) National Association of Home Builders (NAHB)The code development committees evaluate and make recommendat

21、ions regarding proposedchanges to the codes. Their recommendations are then subject to public comment and council-widevotes. The ICCs governmental memberspublic safety officials who have no financial or businessinterest in the outcomecast the final votes on proposed changes.The contents of this work

22、 are subject to change through the code development cycles and by anygovernmental entity that enacts the code into law. For more information regarding the code devel-opment process, contact the Codes and Standards Development Department of the InternationalCode Council.While the I-Code development p

23、rocedure is thorough and comprehensive, the ICC, its membersand those participating in the development of the codes disclaim any liability resulting from thepublication or use of the I-Codes, or from compliance or noncompliance with their provisions. TheICC does not have the power or authority to po

24、lice or enforce compliance with the contents of thiscode.Code Development Committee Responsibilities(Letter Designations in Front of Section Numbers or Definitions)In each code development cycle, proposed changes to the code are considered at the CommitteeAction Hearings by the International Propert

25、y Maintenance/Zoning Code Development Committee,whose action constitutes a recommendation to the voting membership for final action on the pro-posed change. Proposed changes to a code section that has a number beginning with a letter inbrackets are considered by a different code development committe

26、e. For example, proposedchanges to definitions that have BG in front of them (e.g., BG DWELLING UNIT) are considered bythe IBCGeneral Code Development Committee at the code development hearings.The content of sections or definitions in this code that begin with a letter designation is main-tained by

27、 another code development committee in accordance with the following:A = Administrative Code Development Committee; andBG = IBCGeneral Code Development Committee.For the development of the 2021 edition of the I-Codes, there will be two groups of code devel-opment committees and they will meet in sep

28、arate years.2018 INTERNATIONAL ZONING CODEvCode change proposals submitted for code sections that have a letter designation in front ofthem will be heard by the respective committee responsible for such code sections. Because differ-ent committees hold Committee Action Hearings in different years, p

29、roposals for the IZC will beheard by committees in both the 2018 (Group A) and the 2019 (Group B) code development cycles.For example, the definition of “Dwelling unit” in Section 202 is designated as the responsibility ofthe IBCGeneral Code Development Committee. As noted in the preceding table, th

30、at committeewill hold its Committee Action Hearings in 2018 to consider code change proposals for the chaptersfor which it is responsible. Therefore, any proposals to this definition in Chapter 2 will need to besubmitted by January 8, 2018, for consideration in 2018 by the appropriate International

31、BuildingCode Committee (IBCGeneral).As another example, every section of Chapter 1 of this code is designated as the responsibility ofthe Administrative Code Development Committee, which is part of the Group B portion of the hear-ings. This committee will hold its Committee Action Hearings in 2019 t

32、o consider code change pro-posals for Chapter 1 of all I-Codes except the International Energy Conservation Code, InternationalResidential Code and International Green Construction Code. Therefore, any proposals received forChapter 1 of this code will be assigned to the Administrative Code Developme

33、nt Committee for con-sideration in 2019.It is very important that anyone submitting code change proposals understands which codedevelopment committee is responsible for the section of the code that is the subject of the codechange proposal. For further information on the code development committee r

34、esponsibilities,please visit the ICC website at www.iccsafe.org/scoping.Group A Codes(Heard in 2018, Code Change ProposalsDeadline: January 8, 2018)Group B Codes(Heard in 2019, Code Change ProposalsDeadline: January 7, 2019)International Building Code Egress (Chapters 10, 11, Appendix E) Fire Safety

35、 (Chapters 7, 8, 9, 14, 26) General (Chapters 26, 12, 2733,Appendices A, B, C, D, K, N)Administrative Provisions (Chapter 1 of allcodes except IECC, IRC and IgCC, administra-tive updates to currently referenced stan-dards, and designated definitions)International Fire Code International Building Cod

36、e Structural (Chapters 1525, Appendices F,G, H, I, J, L, M)International Fuel Gas Code International Existing Building CodeInternational Mechanical Code International Energy Conservation CodeCommercialInternational Plumbing Code International Energy Conservation CodeResidential IECCResidential IRCEn

37、ergy (Chapter 11)International Property Maintenance Code International Green Construction Code(Chapter 1)International Private Sewage Disposal Code International Residential Code IRCBuilding (Chapters 110,Appendices E, F, H, J, K, L, M, O, Q, R, S, T)International Residential Code IRCMechanical (Cha

38、pters 1223) IRCPlumbing (Chapters 2533, Appendices G, I, N, P)International Swimming Pool and Spa CodeInternational Wildland-Urban Interface CodeInternational Zoning CodeNote: Proposed changes to the ICC Performance Code will be heard by the code development committee noted in brack-ets in the text

39、of the ICC Performance Code.vi 2018 INTERNATIONAL ZONING CODEMarginal MarkingsSolid vertical lines in the margins within the body of the code indicate a technical change from therequirements of the 2015 edition. Deletion indicators in the form of an arrow ( ) are provided inthe margin where an entir

40、e section, paragraph, exception or table has been deleted or an item in alist of items or a table has been deleted.Chapter 1, Scope and Administration, had no technical changes from the 2015 edition; however,the chapter has been reordered for consistency with the other I-Codes. The following table i

41、ndi-cates the reordering of Chapter 1 of the 2018 edition of the International Zoning Code.Coordination of the International CodesThe coordination of technical provisions is one of the strengths of the ICC family of model codes.The codes can be used as a complete set of complementary documents, whic

42、h will provide userswith full integration and coordination of technical provisions. Individual codes can also be used insubsets or as stand-alone documents. To make sure that each individual code is as complete as pos-sible, some technical provisions that are relevant to more than one subject area a

43、re duplicated insome of the model codes. This allows users maximum flexibility in their application of the I-Codes.Italicized TermsWords and terms defined in Chapter 2, Definitions, are italicized where they appear in code text andthe Chapter 2 definition applies. Where such words and terms are not

44、italicized, common-use defi-nitions apply. The words and terms selected have code-specific definitions that the user should readcarefully to facilitate better understanding of the code.AdoptionThe International Code Council maintains a copyright in all of its codes and standards. Maintainingcopyrigh

45、t allows the ICC to fund its mission through sales of books, in both print and electronic for-mats. The ICC welcomes adoption of its codes by jurisdictions that recognize and acknowledge theICCs copyright in the code, and further acknowledge the substantial shared value of the public/pri-vate partne

46、rship for code development between jurisdictions and the ICC.2018 ORDER 2015 ORDER102 103103 105105 106106 107107 108108 109109 110110 111111 102a1722018 INTERNATIONAL ZONING CODEviiThe ICC also recognizes the need for jurisdictions to make laws available to the public. AllI-Codes and I-Standards, a

47、long with the laws of many jurisdictions, are available for free in anondownloadable form on the ICCs website. Jurisdictions should contact the ICC at adop-tionsiccsafe.org to learn how to adopt and distribute laws based on the International ZoningCode in a manner that provides necessary access, whi

48、le maintaining the ICCs copyright.To facilitate adoption, several sections of this code contain blanks for fill-in informationthat needs to be supplied by the adopting jurisdiction as part of the adoption legislation. Forthis code, please see:Section 101.1. Insert NAME OF JURISDICTIONSection 108.2.2

49、. Insert NUMBER OF WORKING DAYSTable 302.1. Insert MINIMUM AREASSection 1008.1.1. Insert SIGN AREATable 1008.1.1(1). Insert SIGN AREAS IN THREE LOCATIONSTable 1008.1.1(2). Insert PERCENTAGE OF BUILDING ELEVATION IN THREE LOCATIONSTable 1008.1.2. Insert NO. OF SIGNS, HEIGHT AND AREA IN 10 LOCATIONSSection 1008.1.3. Insert SIGN AREAS IN TWO LOCATIONSSection 1008.2.1. Insert SIGN AREAS IN EIGHT LOCATIONSSec