Washington Suburban Sanitary Commission - Wsmpa

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WASHINGTON SUBURBAN SANITARY COMMISSION 2021 WSSC Plumbing and Fuel Gas Code Effective Date: April 1, 2023 CERTIFICATION OF AUTHORITY The General Counsel certifies that the statutory authority for the adoption of this Code is: Annotated Code of Maryland: Maryland Public Utilities Article: Sections 17-403, 17-404, 17-406, 23-101, 24-101, 24-102, 24-103, 24-104, 24-105, 24-106, 24-201, 25-101, 25-105, 26-102, 26-204, 29-101, 29-102, 29-103, 29-104, 29-105, 29-107 Business Occupations and Professions Article: Sections 12-305, 12-307 Environment Article: Sections 9-332 2021 WSSC PLUMBING AND FUEL GAS CODE i

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SCOPE AND ADMINISTRATION TABLE OF CONTENTS CHAPTER 1 SCOPE AND ADMINISTRATION .1 SECTION 101 SCOPE AND GENERAL REQUIREMENTS . 1 101.1 Title. . 1 101.2 Adoption of model codes . 1 101.3 Scope. . 1 101.4 Purpose. . 2 101.5 Severability. 2 SECTION 102 APPLICABILITY . 2 102.1 General. . 2 102.2 Existing installations. . 2 102.3 Maintenance. . 2 102.4 Additions, alterations or repairs. . 4 102.5 Change in occupancy. . 4 102.6 Historic buildings. . 4 102.7 Moved buildings. . 4 102.8 Property and buildings owned by the Federal Government. . 4 102.9 Changes to this Code. 5 102.10 Requirements not covered by this Code. . 5 102.11 Application of references. . 5 SECTION 103 COMMISSION FUNCTIONS . 5 103.1 General. . 5 103.2 Code Officials. . 5 103.3 Qualifications for inspection staff. . 5 SECTION 104 DUTIES AND POWERS OF THE COMMISSION . 5 104.1 General. . 5 104.2 Applications and permits. . 6 104.3 Inspections. . 6 104.4 Right of entry. . 6 104.5 Identification. . 6 104.6 Notices and orders. . 6 104.7 Commission non-interference. . 6 104.8 Liability. . 6 SECTION 105 APPROVAL . 6 105.1 Modifications (waivers). 6 105.2 Alternative materials, design and methods of construction and equipment. . 7 105.3 Required testing. . 7 105.4 Product and material acceptance. . 7 SECTION 106 PERMITS . 8 106.1 Required permits. . 8 106.2 Exempt work, general. . 8 106.3 Permit application. . 14 106.4 Requirements for permit applicants. . 14 106.5 Permit issuance. . 14 106.6 Long Form Permit. 14 106.7 Short Form Permit. 15 106.8 Permit release and transfer . 15 106.9 Work by homeowners. . 15 SECTION 107 TEMPORARY EQUIPMENT, SYSTEMS AND USES . 16 107.1 General. . 16 107.2 Conformance. 16 107.3 Temporary connection. . 17 SECTION 108 INSPECTIONS AND TESTING . 17 108.1 General. . 17 2021 WSSC PLUMBING AND FUEL GAS CODE iii

SCOPE AND ADMINISTRATION 108.2 Licensee responsibility. .17 108.3 Code Official responsibility and inspection criteria. .18 108.4 Inspections by work phase. .19 108.5 Minor site utility systems. .20 108.6 Emergency inspections. .20 108.7 Special plumbing inspections. .20 108.8 Testing. .20 108.9 Coordination of inspections. .20 108.10 Approval. .21 SECTION 109 FEES .21 109.1 Payment of fees.21 109.2 Fee schedule. .21 109.3 Work commencing before permit issuance. .21 109.4 Related fees. .21 109.5 Fee refunds.21 109.6 System development charge fixture credit. .21 109.7 Reinspection fees. .21 SECTION 110 CONSTRUCTION DOCUMENTS .21 110.1 Construction documents. .21 110.2 Retention of construction documents. .22 SECTION 111 NOTICE OF APPROVAL .22 111.1 Approval. .22 SECTION 112 CONNECTION TO THE COMMISSION'S SYSTEMS AND METERING .22 112.1 Service connections, general. .22 112.2 Service connections. .23 112.3 Right-of-way or easement. .24 112.4 Fire service connections and fire hydrants.24 112.5 Metering. .25 112.6 Containment.27 SECTION 113 STOP WORK ORDER .28 113.1 Authority. .28 113.2 Issuance. .28 113.3 Emergencies. .28 113.4 Failure to comply. .28 SECTION 114 APPEAL OF CODE OFFICIAL DECISIONS .28 114.1 Applicability of section. With the exception of license actions, this section shall apply to decisions of the Code Official. .28 114.1 Application for appeal. .28 114.3 Appeal of Chief Code Official decision. .28 114.2 Notice of meeting. .28 114.3 Open hearing. .28 114.4 Procedure. .28 114.5 Board decisions. .28 SECTION 115 VIOLATIONS AND PENALTIES .29 115.1 Unlawful acts. .29 115.2 Notice of violation. .29 115.3 Civil citations. .29 115.4 Stop work order.29 115.5 Termination of water, sewer or gas service. .29 115.6 License denials, reprimands, suspensions and revocations, grounds. .29 115.7 Denials, reprimands, suspensions, and revocations, hearings. .30 115.8 Judicial review. .31 115.9 License reinstatement. .31 115.10 Unsafe installations. .31 115.11 Unlicensed work subject to civil liability and criminal prosecution. .31 SECTION 116 THEFT OF COMMISSION SERVICES .32 iv 2021 WSSC PLUMBING AND FUEL GAS CODE

SCOPE AND ADMINISTRATION 116.1 Intent to obtain services without payment. . 32 116.2 Intent to divert services. . 32 SECTION 117 PLUMBING AND FUEL GAS BOARD . 32 117.1 Duties. . 32 117.2 Voting membership. 33 117.3 Staff attorney. . 33 117.4 Chairman. . 33 SECTION 118 LICENSES AND REGISTRATION . 33 118.1 Licensee. 33 118.2 Principal licensee. 33 118.4 Firms with multiple divisions. . 33 118.5 Institutional license required. . 34 118.6 Licenses. . 34 118.7 Exam. . 37 118.8 Insurance requirements and warranty. . 37 118.9 License registration. . 38 118.10 License display and advertisement requirements. . 39 118.11 Licensee contact information. . 39 118.12 Reciprocity of licenses. 39 SECTION 119 CROSS CONNECTION/BACKFLOW PREVENTION CERTIFICATION TRAINING PROGRAM . 41 119.1 Certified training program. . 41 119.2 Certificate. . 41 119.3 Pocket identification card. . 42 119.3 Recertification offer. . 42 119.4 List of certified instructors. . 42 119.5 Authorization for work. . 42 CHAPTER 2 DEFINITIONS. 43 SECTION 201 GENERAL . 43 201.1 Definitions, generally. . 43 201.2 Industrial and special waste. . 43 SECTION 202 ACRONYMS . 43 SECTION 203 ADDITIONAL DEFINITIONS. 44 CHAPTER 3 ADOPTION OF INTERNATIONAL PLUMBING CODE . 51 SECTION 301 GENERAL . 51 301.1 Adoption. . 51 301.2 Applicability. 51 301.3 Availability for Review. 51 SECTION 302 AMENDMENTS TO THE INTERNATIONAL PLUMBING CODE . 51 302.1 Amendment of IPC CHAPTER 1, “ADMINISTRATION“. . 51 302.2 Reserved. . 51 302.3 Amendment of IPC CHAPTER 3, “GENERAL REGULATIONS“ . 51 302.4 Amendment of IPC CHAPTER 4, “FIXTURES, FAUCETS AND FIXTURE FITTINGS“ . 53 302.5 Amendment of IPC Chapter 5, “WATER HEATERS“ . 54 302.6 Amendment of IPC CHAPTER 6, “WATER SUPPLY AND DISTRIBUTION“ . 55 302.7 Amendment of IPC CHAPTER 7, “SANITARY DRAINAGE“ . 60 302.8 Amendment of IPC CHAPTER 8, “INDIRECT/SPECIAL WASTE“ . 64 302.9 Amendment of IPC CHAPTER 9, “VENTS“ . 64 302.10 Amendment of IPC CHAPTER 10, “TRAPS, INTERCEPTORS, AND SEPARATORS“ . 66 SECTION 1003 INTERCEPTORS . 66 1003.1 General. . 66 1003.2 Grease abatement systems. 66 1003.3 Oil and sand interceptors. . 72 1003.4 Solids interceptors. . 72 302.11 Amendment of IPC Chapter 11, “STORM DRAINAGE“ . 73 302.12 Amendment of IPC CHAPTER 12, “SPECIAL PIPING AND STORAGE SYSTEMS“. . 73 2021 WSSC PLUMBING AND FUEL GAS CODE v

SCOPE AND ADMINISTRATION 302.13 Amendment of IPC CHAPTER 13, “NON-POTABLE WATER SYSTEMS“. .73 302.14 Amendment of IPC CHAPTER 14, “SUBSURFACE LANDSCAPE IRRIGATION SYSTEMS“. .73 CHAPTER 4 ADOPTION OF INTERNATIONAL FUEL GAS CODE . 75 SECTION GENERAL 401.75 401.1 Adoption. .75 401.2 Applicability. .75 401.3 Availability for review. .75 SECTION 402 AMENDMENTS TO THE INTERNATIONAL FUEL GAS CODE.75 402.1 Amendment of IFGC CHAPTER 1, “ADMINISTRATION“. .75 402.2 Reserved.

2021 WSSC PLUMBING AND FUEL GAS CODE i WASHINGTON SUBURBAN SANITARY COMMISSION 2021 WSSC Plumbing and Fuel Gas Code Effective Date: April 1, 2023 CERTIFICATION OF AUTHORITY The General Counsel certifies that the statutory authority for the adoption of this Code is: Annotated Code of Maryland: Maryland Public Utilities Article:

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