Administrative Rules of Montana › Department 24 - LABOR AND INDUSTRY › Chapter 24.301 - BUILDING CODES › Subchapter 24.301.3 - Plumbing Requirements › Rule 24.301.301 - INCORPORATION BY REFERENCE OF UNIFORM PLUMBING CODE

Current through Register Vol. 13, July 5, 2024
(1) The department adopts and incorporates by
				reference the Uniform Plumbing Code, 2021 edition, unless another edition is
				specifically stated, together with the following appendix chapters and
				amendments:
(a) Appendix A, Recommended Rules
				for Sizing the Water Supply System is adopted.
(b) Appendix B, Explanatory Notes on
				Combination Waste and Vent Systems is adopted.
(c) Appendix C, Alternate Plumbing Systems is
				adopted.
(d) Appendix D, Sizing
				Stormwater Drainage Systems is adopted.
(e) Appendix K, Potable Rainwater Catchment
				Systems is adopted.
(f) Appendix L,
				Sustainable Practices is adopted.
(g) Appendix M, Peak Water Demand Calculator
				is adopted.
(h) Appendix N, Impact
				of Water Temperature on the Potential for Scalding and Legionella Growth is
				adopted.
(i) Subsection 103.3.1,
				Licensing, is amended with the addition of the following language: The
				requirements for who must be licensed to perform plumbing work is regulated by
				Title 37, chapter 69, MCA.
(j)
				Subsections 104.1, 104.2, 104.3, 104.3.2, 104.4, 104.5, 105.0, 105.4, 106.1,
				106.3, and 107.0 will be left as is for use by local governments (i.e.,
				municipalities and counties), but will not be used by the department and the
				state of Montana. For the purposes of enforcement by the department, these
				subsections are replaced with provisions of Title 50, chapter 60, part 5,
				MCA.
(k) Delete Table 104.5 -
				PLUMBING PERMIT FEES and replace with the following schedule:
(i) for each plumbing fixture $10
(ii) water service - domestic or commercial
				20
(iii) for each building sewer
				and each trailer park sewer 20
(iv) storm drains and storm drainage
				20
(v) for each water heater
				(replacement or new) 25
(vi) for
				each industrial water pretreatment interceptor, including its tray and vent,
				excepting kitchen type grease interceptors functioning as fixture traps
				30
(vii) for alteration or repair
				of water piping and/or water treatment equipment 30
(viii) for repair or alteration of drainage
				or vent piping 30
(ix) for each
				lawn sprinkler system and fire protection system or any one meter, including
				backflow protection devices therefore 30
(x) for each hose bibb, vacuum breakers, or
				backflow protective devices on tanks, vats, etc., or for installation on
				unprotected plumbing fixtures, including necessary water piping 6
				each
(xi) requested plumbing
				inspection fee (provided that such service is not in excess of one hour in
				duration, and then $35 for each 30 minutes or fractional part thereof in excess
				of one hour. Travel and per diem may be charged as per the state of Montana's
				existing rate for these items) 75
(xii) reinspection (provided the $30 does not
				exceed the original permit fee, in which case the original fee will be charged)
				45
(xiii) for each medical gas
				type/piping system as follows:
(A) oxygen
				piping 100
(B) nitrogen piping
				100
(C) medical compressed air
				piping 100
(D) nitrous oxide piping
				100
(E) carbon dioxide piping
				100
(F) medical vacuum piping
				100
(G) any other medical gas
				piping not included above in (A) through (F) 100
(H) if total outlets for all gases/vacuum
				piping exceed 20 outlets, then there is an additional fee for each outlet over
				20 10
(xiv) for each
				gray water system (commercial or residential) 60
(l) Section 218, Definition of Plumbing
				System, is amended to read: "Includes all potable water and alternate water
				sources including supply and distribution pipes, all plumbing fixtures and
				traps, all drainage and vent pipes, building drains and building sewers,
				including their respective joints and connections, devices, receptacles, and
				appurtenances within the property line of any premises, and includes water
				heaters and vents for the premises."
(m) Table 422.1, Minimum Plumbing Facilities,
				is deleted and replaced with ARM 24.301.351, Minimum Required Plumbing
				Fixtures.
(n) Delete Subsection
				603.4.2.
(o) Subsection 603.5.10,
				is amended with the addition of the following language: "Boiler feed lines, in
				single-family dwellings on their own private well, may be protected with a dual
				check valve with intermediate atmospheric vent when a nontoxic transfer fluid
				is utilized in the boiler."
(p)
				Subsection 604.3, the exception is amended to read as follows: Exception: Type
				M copper tubing may be used for water piping when piping is above ground in, or
				on, a building.
(q) Subsection
				605.12.2, Solvent Cement Joints, delete the third sentence and replace with the
				following: "Where surfaces to be joined are cleaned and free of dirt, moisture,
				oil, and other foreign material, apply approved primer in accordance with ASTM
				F 656."
(r) Subsection 610.8, last
				sentence, is amended to read as follows: No building supply pipe shall be less
				than 3/4 inch (19.1 mm) in inside diameter.
(s) Subsection 612.0, Residential Fire
				Sprinkler Systems, is deleted in its entirety.
(t) Subsection 704.3, is amended by deleting
				the first sentence and replacing it with, "There may not be a direct connection
				between the sewerage system and any drains originating from equipment in which
				food, portable equipment, or utensils are placed." Exception: A warewashing
				(3-compartment) sink may have a direct connection only when used as a wash bin,
				rinse bin, and sanitizing bin and shall not be used for any other purpose.
				Establishments that use the sanitizing bin of their warewashing sink to wash
				produce or conduct other food preparation must maintain an indirect connection
				and are not eligible for this exception.
(u) Subsection 705.6.2, Solvent Cement
				Joints, delete the third sentence and replace with the following: "Where
				surfaces to be joined are cleaned and free of dirt, moisture, oil, and other
				foreign material, apply approved primer in accordance with ASTM F
				656."
(v) Subsection 707.4 is
				amended by deleting the first sentence and replacing with, "Each horizontal
				drainage pipe shall be provided with a cleanout at its upper terminal and each
				run of piping, which is more than 50 feet in total developed length, shall be
				provided with a cleanout for each 50 feet, or fraction thereof, in length of
				such piping."
(w) Section 708.1,
				is amended to read as follows: Horizontal drainage piping shall be run in
				practical alignment and a uniform slope of not less than 1/4 of an inch per
				foot or 2 percent toward the point of disposal provided that, where it is
				impractical due to the depth of the street sewer or to the structural features
				or to the arrangement of any building or structure to obtain a slope of 1/4 of
				an inch per foot or 2 percent, any such pipe or piping 2 inches or larger in
				diameter may have a slope of not less than 1/8 of an inch per foot or 1
				percent.
(x) Subsection 718.1, the
				exception is amended to read as follows: Exception: Where it is impractical,
				due to the depth of the street sewer or to the structural features or to the
				arrangement of any building or structure, to obtain a slope of 1/4 of an inch
				per foot, any pipe or piping 3 inches or larger in diameter may have a slope of
				1/8 of an inch per foot and any such pipe or piping 8 inches in diameter or
				larger may have a slope of 1/16 of an inch per foot.
(y) Subsection 807.3, Domestic Dishwashing
				Machine, add exception as follows: "Exception #1: The waste connection of a
				residential dishwasher shall connect directly to a wye branch fitting on the
				tailpiece of the kitchen sink, directly to the dishwasher connection of a food
				waste disposer, or through an air break to a standpipe. The waste line of a
				residential dishwasher shall rise and be securely fastened to the underside of
				the sink rim or countertop."
(z)
				Subsection 906.1, the first sentence is amended to read as follows: Each vent
				pipe or stack shall extend through its flashing and shall terminate vertically
				not less than 12 inches above the roof nor less than one foot from any vertical
				surface.
(aa) Subsection 906.3, is
				amended to read as follows: Vent pipes shall be extended separately or
				combined, of full required size, not less than 12 inches above the roof or fire
				wall.
(ab) Subsection 906.7, is
				amended to read as follows: Frost and Snow Closure: Where frost or snow closure
				is likely to occur in locations having a minimum design temperature below zero
				degrees Fahrenheit vent terminals shall be a minimum of 3 inches in diameter,
				but in no event smaller than the required vent pipe. The change in diameter
				shall be made inside the building at least 1 foot below the roof and terminate
				not less than 12 inches above the roof, or as required by the administrative
				authority.
(ac) Subsection 907.1
				is amended to read, "Wet Venting."
(ad) Subsection 907.1.1 is deleted and
				replaced with, "Wet venting is limited to drainage piping receiving the
				discharge from the trap arm of one and two fixture unit fixtures that also
				serves as a vent for not to exceed four fixtures. All wet vented fixtures shall
				be within the same story; provided, further, that fixtures with a continuous
				vent discharging into a wet vent shall be within the same story as the wet
				vented fixtures."
(ae) Subsection
				907.1.2, is amended to read as follows: "The piping between any two consecutive
				inlet levels shall be considered a wet vented section. Each wet vented section
				shall be a minimum of one pipe size larger than the required minimum waste pipe
				size of the upper fixture or shall be one pipe size larger than the required
				minimum pipe size for the sum of the fixture units served by such wet vented
				section, whichever is larger, but in no case less than two inches."
(af) Subsection 907.2 is amended with
				addition of the following: "Bathroom group locations include private bathrooms,
				private patient hospital rooms, commercial toilet rooms with only one toilet,
				one lavatory and may include one floor drain."
(ag) Chapter 12, Fuel Piping, is deleted and
				replaced with the International Fuel Gas Code.
(ah) Chapter 13, Health Care Facilities and
				Medical Gas and Vacuum Systems, is deleted except for Subsections 1301.0,
				1302.0, and 1303.0, Health Care Facilities. In lieu of Chapter 13, except for
				the subsections not deleted, the department adopts and incorporates by
				reference the National Fire Protection Association's Standard NFPA 99, 2018
				edition, Chapters 1 through 5 and Chapter 15 for the exclusive use as a
				standard for medical gas and vacuum systems, unless a different edition date is
				specifically stated, as the standard for the installation of medical gas and
				vacuum systems. The requirements of this rule shall not be construed as to
				replace or supersede any additional requirements for testing and certification
				of medical gas and vacuum systems, including independent third-party
				certification of systems, as may be applicable. NFPA 99 is a nationally
				recognized standard setting forth minimum standards and requirements for
				medical gas and vacuum systems. A copy of NFPA 99 may be obtained from the
				National Fire Protection Association at
www.nfpa.org
.