Baltimore City Code, Building Codes, Part VI, Sections 301 to 304
Sections 301 to 304.
{As in IPC}
General Regulations
Baltimore City Code div. Building Codes, pt. VI, ch. 3
in effectBaltimore City Code, Building Codes, Part VI, Section 305 Protection of Pipes and Plumbing System Components
Section 305. Protection of Pipes and Plumbing System Components
305.1 to 305.3 {As in IPC}
305.4 Freezing or overheating.
The plumbing system must be protected from freezing or overheating.
305.4.1 Specific requirements.
The following conditions must be met:
1. Water service piping must be installed below recorded frost lines. Earth cover above the top of the pipe must be at least 36 inches (914 mm).
2. Earth cover above the top of building sewers that connect to public sewage systems or to individual sewage disposal systems must be at least 30 inches (762 mm).
3. In systems that are used seasonally, water piping must have provisions for draining.
4. Piping must be installed so that the contents will not be heated due to close proximity to any heat source or from direct solar radiation.
5. All drain piping and water piping installed in exterior walls, attics, and other areas exposed to outdoor temperatures must be protected from freezing. In heated spaces, the piping must be installed on the heated side of the building insulation.
305.5 to 305.7 {As in IPC}
Baltimore City Code, Building Codes, Part VI, Sections 306 to 308
Sections 306 to 308.
{As in IPC}
Baltimore City Code, Building Codes, Part VI, Section 309 Flood Hazard Resistance
Section 309. Flood Hazard Resistance
309.1 General.
In a flood hazard area, plumbing systems must be constructed, located, and installed in accordance with the requirements of the Baltimore City Floodplain Management Code, City Code Article 7 {“Natural Resources”}, Division I {“Floodplain Management”}.
309.2 Scope.
The requirements of this § 309 apply to all plumbing systems, their attendant components and equipment, including the following:
1. all water service pipes,
2. pump seals in individual water supply systems,
3. Covers on potable water wells,
4. all sanitary drainage piping,
5. all storm drainage piping,
6. manhole covers,
7. all other plumbing fixtures, faucets, fixture fittings, piping systems, and equipment,
8. water heaters, and
9. vents and vent systems.
Exception: {Not adopted}
309.3 Coastal high-hazard area and coastal A zones. {Not Adopted}
Baltimore City Code, Building Codes, Part VI, Sections 310 to 313
Sections 310 to 313.
{As in IPC}
Baltimore City Code, Building Codes, Part VI, Section 314 Condensate Disposal
Section 314. Condensate Disposal
314.1 Fuel burning appliances. {As in IPC}
314.2 Evaporators and cooling coils. {As in IPC}
314.2.1 Condensate disposal.
Condensate from all cooling coils or evaporators must be conveyed from the drain pan outlet to an approved place of disposal. The piping must maintain a minimum horizontal slope in the direction of discharge of not less than one-eighth unit vertical in 12 units horizontal (1% slope). Condensate may not discharge into a street, alley, or other area so as to cause a nuisance. Clear water discharge must be conveyed to the storm drain where feasible unless otherwise approved by the Code Official.
314.2.2 to 314.2.5 {As in IPC}
Baltimore City Code, Building Codes, Part VI, Section 315 Penetrations
Section 315. Penetrations
{As in IPC}
Baltimore City Code, Building Codes, Part VI, Section 316 Alternative Engineered Design
Section 316. Alternative Engineered Design
{As in IPC}
Baltimore City Code, Building Codes, Part VI, Section 317 Connection to Water and Sewer Systems
Section 317. Connection to Water and Sewer Systems
317.1 Availability of Public Water and Sewer.
The water distribution and sewer system of any building in which plumbing fixtures are installed must be connected to a public water supply system and to a public sewer system unless otherwise authorized by a National Pollutant Discharge
Elimination System permit issued under Title 9 of the State Environment Article. Private septic tank systems may only be installed with the written permission of the Code Official.
317.2 Private Systems.
Private systems must comply with COMAR 26.04.02 {“Sewage Disposal and Certain Water Systems...”}.
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/3Fetched: 10/25/2026