Baltimore City Code, Building Codes, Part VI, Sections 601 to 604
Sections 601 to 604.
{As in IPC}
Water Supply and Distribution
Baltimore City Code div. Building Codes, pt. VI, ch. 6
in effectBaltimore City Code, Building Codes, Part VI, Section 605 Materials, Joints, and Connections
Section 605. Materials, Joints, and Connections
605.1 to 605.12 {As in IPC}
605.13 Copper tubing. {As in IPC}
605.13.1 to 605.13.7 {As in IPC}
605.13.8 Underground service.
Copper water tubing, seamless, Type M, is not approved for underground water service.
605.14 to 605.24 {As in IPC}
Baltimore City Code, Building Codes, Part VI, Section 606 Installation of Building Water Distribution System
Section 606. Installation of Building Water Distribution System
{As in IPC}
Baltimore City Code, Building Codes, Part VI, Section 607 Hot Water Supply System
Section 607. Hot Water Supply System
607.1 to 607.2 {As in IPC}
607.3 Thermal expansion control.
607.3.1 Backflow prevention valve or check valve.
607.3.1.1 Hot water return piping.
When hot water return piping is needed, it must be taken from the supply side of the backflow prevention device.
607.3.1.2 High-hazard buildings.
In addition to the backflow device on the water supply main, at each floor where hazardous uses of water are found, a backflow prevention device must be installed on the water service line that supplies that floor.
607.3.1.3 Testing and inspection certificate.
All testing and inspections must be documented on a certificate attached to the backflow prevention device.
607.4 to 607.5 {As in IPC}
Baltimore City Code, Building Codes, Part VI, Section 608 Protection of Potable Water Supply
Section 608. Protection of Potable Water Supply
608.1 General. {As in IPC}
608.1.1 License required to connect to City supply.
A person may not connect backflow prevention devices to the potable water supply in the City unless that person is licensed by the State as a master or journeyman plumber.
608.2 to 608.16 {As in IPC}
608.17 Connections to the potable water system.
608.17.1 to 608.17.3 {As in IPC}
608.17.4 Connections to automatic fire sprinkler systems and standpipe systems. {As in IPC}
608.17.4.1 Additives or nonpotable source. {As in IPC}
608.17.4.2 Individual Valves on Sprinkler Systems.
Domestic water service lines used to supply water to both the sprinkler and the domestic water piping inside a building must have an individual valve on both branch lines when served by a single water service pipe. A building valve may not be used to serve both systems. A flow alarm must be provided on the sprinkler system.
Exception: Single-family dwellings.
608.17.5 to 608.17.10 {As in IPC}
608.18 Protection of individual water supplies. {As in IPC}
Baltimore City Code, Building Codes, Part VI, Sections 609 to 613
Sections 609 to 613.
{As in IPC}
Source: City of Baltimore Department of Legislative Reference, City of Baltimore Law Library (codes.baltimorecity.gov; Open Law Library bulk XML)URL: https://codes.baltimorecity.gov/us/md/cities/baltimore/code/building-codes/VI/6Fetched: 10/25/2026