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Montgomery County Maryland
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DPS/Building Construction - Building Codes & Standards

To obtain a copy of building/electrical/mechanical/energy-code amendments, please call 240 777-6370. For fire-code amendments, call 240 777-2457. Local amendments, where listed, are available in Adobe PDF format. For information on building codes and standards in effect for previous years, click here.



TYPE

CODE/EDITION

LOCAL AMENDMENTS

EFFECTIVE DATE

Yes

No

Commercial Building Code

ICC International Building Code/2006

X

 

05-13-2008

MBRC Maryland Building Rehabilitation Code

 

X

07-16-2007

Residential Building, Energy & Mechanical Code

ICC  International Residential Code/2006

X

 

05-13-2008

MBRC Maryland Building Rehabilitation Code

 

X

07-16-2007

Electrical Code

NFPA  National Electrical Code/2002

X

 

04-01-2005

Commercial Mechanical Code

ICC  International Mechanical Code/2006
ICC  International Fuel Gas Code/2006

X

 

05-13-2008

Plumbing & Gas Code

WSSC Plumbing Code

 

X

05-01-2007

Life-Safety Code

NFPA-101/2003

X

 

11-28-2006

Fire Alarm Code

NFPA-72/2002

X

 

11-28-2006

Sprinkler Code

NFPA-13/2002

X

 

11-28-2006

Residential Sprinkler

NFPA-13D & 13R/2002

X

 

11-28-2006

Accessibility

COMAR 05.02.02, ADAAG & FFHAG

 

X

02-01-1995

Energy Conservation (Commercial Buildings)

ICC  International Energy
Conservation Code/2006

X

 

05-13-2008

*MBRC applies to a building or structure that was erected and occupied or issued a certificate of occupancy at least 1 year before a construction permit application for that building or structure was made to a local jurisdiction.


Residential Construction Design Parameters

Ground Snow Load

Wind Speed

Seismic Design Category

Subject To Damage From

Wea- thering

Frost Line Depth

Termite

Decay

30 PSF
(1.4 kN/m²)

90 mph
(145 km/hr)

B

Severe

24 in
(610 mm)

Moderate to heavy

Slight to moderate

(Continued)

Winter Design Temp.

Ice Shield Underlayment Required

Flood Hazards

Air Freezing Index

Mean Annual Temp.

13°F(-10.6°C)

Yes

July 2, 1979

300

55°F(12.8°C)


Commercial Construction Design Parameters

Ground Snow Load

Wind Speed

Spectral Response Acceleration

Wea- thering

Frost Line Depth

Ss %g

S1 %g

30 PSF
(1.4 kN/m²)

90 mph
(145 km/hr)

16

5.1

Severe

24 in
(610 mm)



Last edited: 12/23/2008

Last edited: 12/23/2008