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Rule: 24.301.351 Prev     Up     Next    
Rule Title: MINIMUM REQUIRED PLUMBING FIXTURES
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Department: LABOR AND INDUSTRY
Chapter: BUILDING CODES
Subchapter: Plumbing Requirements
 
Latest version of the adopted rule presented in Administrative Rules of Montana (ARM):

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24.301.351    MINIMUM REQUIRED PLUMBING FIXTURES

(1) The following table will be used to determine the minimum number of plumbing fixtures to be installed in new buildings:

 

MINIMUM NUMBER OF PLUMBING FACILITIESa, n, q
Fixtures (Number of fixtures per number of occupants)

 

Minimum number of plumbing facilities - Fixtures (Number of fixtures per number of occupants)
 

 

a. The fixtures shown are based on one fixture being the minimum required for the number of persons indicated or any fraction of the number of persons indicated. The number of occupants shall be determined by the building code.

b. Fixtures located in adjacent buildings under the ownership or control of the church shall be made available during periods the church is occupied.

c. Toilet facilities for employees shall be separate from facilities of inmates or patients.

d. For attached one- and two-family dwellings, one automatic clothes washer connection shall be required per 20 dwelling units.

e. A single-occupant toilet room with one water closet and one lavatory serving not more than two adjacent patient rooms shall be permitted where such room is provided with direct access from each patient room and with provisions for privacy.

f. For day nurseries, a maximum of one bathtub shall be required.

g. Food service establishments or any establishment that sells alcoholic beverages for on-site consumption requires at least one urinal.

h. Contact the Department of Public Health and Human Services for additional requirements for food service establishments.

i. At the discretion of the building official, certain nonassembly buildings where food and beverages are not consumed on the premises, may be allowed to furnish only one public toilet provided it is designed for male and female use and it is suitable for use by handicapped persons.

j. At the discretion of the building official, for small (less than 1200 sq. ft. in floor area) convenience stores (typically gasoline sales plus convenience items and beverages) located to serve primarily neighborhood areas instead of major highways, only one public toilet is needed, provided it is designated for both male and female use and it is suitable for use by handicapped persons.

k. If the total number of students plus staff exceeds 20, must provide separate male and female toilets.

l. Keyed toilets under employee control of the type available at service stations are permitted.

m. Where urinals are provided, notwithstanding the required urinal in footnote g. above, one water closet less than the number specified may be provided for each urinal installed, except the number of water closets in such cases shall not be reduced to less than one-half of the minimum specified.

n. When calculating number of male and female occupants, the occupant load of the building shall be considered half male and half female, and the occupant load shall be calculated in accordance with the building code.

o. Riding arenas as defined in ARM 24.301.146(11) are required to provide separate male and female accessible restrooms which contain a minimum of one water closet and one lavatory.

p. See ARM 24.301.903 for additional requirements and provisions concerning building accessibility.

q. If a specific occupancy is not shown in the table, the building official shall determine on an individual case-by-case basis the requirements for that occupancy.

r. On an individual case-by-case basis the building official may approve an alternative source of potable drinking water, such as, but not limited to, a bottled water cooler, in lieu of a drinking fountain. 

 

History: 50-60-203, 50-60-504, MCA; IMP, 50-60-203, 50-60-504, MCA; NEW, 1978 MAR p. 1483, Eff. 10/27/78; AMD, 1981 MAR p. 515, Eff. 5/29/81; AMD, 1982 MAR p. 483, Eff. 3/12/82; TRANS, from Dept. of Admin., Ch. 352, L. 1985, Eff. 7/1/85; AMD, 1987 MAR p. 2237, Eff. 12/11/87; AMD, 1990 MAR p. 2041, Eff. 11/16/90; AMD, 1994 MAR p. 299, Eff. 2/11/94; AMD, 1996 MAR p. 420, Eff. 2/9/96; AMD, 1997 MAR p. 44, Eff. 1/17/97; AMD, 1997 MAR p. 2061, Eff. 11/18/97; AMD, 1998 MAR p. 2563, Eff. 9/25/98; TRANS, from Commerce, 2001 MAR p. 2301; AMD, 2004 MAR p. 571, Eff. 3/12/04; AMD, 2010 MAR p. 1733, Eff. 7/30/10; AMD, 2019 MAR p. 2242, Eff. 12/7/19.


 

 
MAR Notices Effective From Effective To History Notes
24-301-347 12/7/2019 Current History: 50-60-203, 50-60-504, MCA; IMP, 50-60-203, 50-60-504, MCA; NEW, 1978 MAR p. 1483, Eff. 10/27/78; AMD, 1981 MAR p. 515, Eff. 5/29/81; AMD, 1982 MAR p. 483, Eff. 3/12/82; TRANS, from Dept. of Admin., Ch. 352, L. 1985, Eff. 7/1/85; AMD, 1987 MAR p. 2237, Eff. 12/11/87; AMD, 1990 MAR p. 2041, Eff. 11/16/90; AMD, 1994 MAR p. 299, Eff. 2/11/94; AMD, 1996 MAR p. 420, Eff. 2/9/96; AMD, 1997 MAR p. 44, Eff. 1/17/97; AMD, 1997 MAR p. 2061, Eff. 11/18/97; AMD, 1998 MAR p. 2563, Eff. 9/25/98; TRANS, from Commerce, 2001 MAR p. 2301; AMD, 2004 MAR p. 571, Eff. 3/12/04; AMD, 2010 MAR p. 1733, Eff. 7/30/10; AMD, 2019 MAR p. 2242, Eff. 12/7/19.
24-301-246 7/30/2010 12/7/2019 History: 50-60-203, 50-60-504, MCA; IMP, 50-60-203, 50-60-504, MCA; NEW, 1978 MAR p. 1483, Eff. 10/27/78; AMD, 1981 MAR p. 515, Eff. 5/29/81; AMD, 1982 MAR p. 483, Eff. 3/12/82; TRANS, from Dept. of Admin., Ch. 352, L. 1985, Eff. 7/1/85; AMD, 1987 MAR p. 2237, Eff. 12/11/87; AMD, 1990 MAR p. 2041, Eff. 11/16/90; AMD, 1994 MAR p. 299, Eff. 2/11/94; AMD, 1996 MAR p. 420, Eff. 2/9/96; AMD, 1997 MAR p. 44, Eff. 1/17/97; AMD, 1997 MAR p. 2061, Eff. 11/18/97; AMD, 1998 MAR p. 2563, Eff. 9/25/98; TRANS, from Commerce, 2001 MAR p. 2301; AMD, 2004 MAR p. 571, Eff. 3/12/04; AMD, 2010 MAR p. 1733, Eff. 7/30/10.
3/12/2004 7/30/2010 History: 50-60-203, 50-60-504, MCA; IMP, 50-60-203, 50-60-504, MCA; NEW, 1978 MAR p. 1483, Eff. 10/27/78; AMD, 1981 MAR p. 515, Eff. 5/29/81; AMD, 1982 MAR p. 483, Eff. 3/12/82; TRANS, from Dept. of Admin. , Ch. 352, L. 1985, Eff. 7/1/85; AMD, 1987 MAR p. 2237, Eff. 12/11/87; AMD, 1990 MAR p. 2041, Eff. 11/16/90; AMD, 1994 MAR p. 299, Eff. 2/11/94; AMD, 1996 MAR p. 420, Eff. 2/9/96; AMD, 1997 MAR p. 44, Eff. 1/17/97; AMD, 1997 MAR p. 2061, Eff. 11/18/97; AMD, 1998 MAR p. 2563, Eff. 9/25/98; TRANS, from Commerce, 2001 MAR p. 2301; AMD, 2004 MAR p. 571, Eff. 3/12/04.
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