Building Amendments

Department of Administration Adopted Permanent Rules Relating to Building Code 1300.2100 PURPOSE AND APPLICATION.

For text of subpart 1, see M.R.Subp. 2. Application. The code applies statewide except as provided for in Minnesota Statutes, sections 16B.72 and 16B.73, and supersedes the building code of any municipality. The code does not apply to agricultural buildings except with respect to state inspections required or rulemaking authorized. The administrative chapters of the Uniform Building Code, chapters 1 and 34, as amended, govern the application of the code. 1300.2400 DEFINITIONS.

For text of subps 1 to 5, see M.R.Subp. 6. Code. "Code" means the Minnesota State Building Code adopted under Minnesota Statutes, section 16B.61, subdivision 1, and includes the following chapters of Minnesota Rules: A. 1300, Minnesota Building Code; B. 1301, Building Official Certification; C. 1302, Construction Approvals; D. 1305, Adoption of the Uniform Building Code; E. 1306, Special Fire Protection Systems; F. 1307, Elevators and Related Devices; G. 1315, Adoption of the National Electrical Code; H. 1325, Solar Energy Systems; I. 1330, Fallout Shelters; J. 1335, Floodproofing Regulations; K. 1340, Facilities for the Handicapped; L. 1346, Adoption of the Uniform Mechanical Code; M. 1350, Manufactured Homes; N. 1360, Prefabricated Buildings; O. 1361, Industrialized/Modular Buildings; P. 1370, Storm Shelters (Manufactured Home Parks); Q. 4715, Minnesota Plumbing Code; and R. 7670, Minnesota Energy Code. See part 1300.2900 for those chapters that may be adopted at the option of a municipality which has adopted the code.

For text of subps 7 to 15, see M.R.1300.3900 RESTROOM FACILITIES IN PUBLIC ACCOMMODATIONS. Subpart 1. Ratio. In a place of public accommodation subject to this part, the ratio of water closets for women to the total of water closets and urinals provided for men must be at least three to two, unless there are two or fewer fixtures for men.

For text of subps 2 and 3, see M.R.1300.4900 SPECIAL EGRESS DEVICES. Subpart 1. Group E, Division 1 occupancies. If approved by the building official, exit doors in a Group E, Division 1 occupancy or portions of a Group E, Division 1 occupancy, may be equipped with approved, listed egresscontrol devices of accesscontrol type, provided the building is equipped throughout with an approved, supervised automatic fire alarm and smokedetection system and the Group E, Division 1 occupancy or portion of the Group E, Division 1 occupancy is protected by an approved automatic sprinkler system. These devices must:

For text of item A, see M.R.B. automatically deactivate upon loss of electrical power to any of the following: (1) the egresscontrol device; (2) the fire alarm system; (3) the smoke detection system; (4) exit illumination as required by UBC Section 1003.2.9;

For text of items C and D, see M.R.Subp. 2. Group A occupancy in conjunction with Group E,

Division 1, occupancy. If approved by the building official, exit doors serving Group A occupancies in conjunction with a Group E, Division 1, occupancy may be equipped with approved, listed, egresscontrol devices of accesscontrol type, provided the building is equipped throughout with an approved, supervised automatic fire alarm and smokedetection system and the Group A occupancy or portion of the Group A occupancy is protected by an approved automatic sprinkler system. These systems must be installed so as to:

For text of items A and B, see M.R.C. automatically deactivate the egresscontrol device upon loss of electrical power to any of the following: (1) the egresscontrol device; (2) the fire alarm system; (3) the smoke detection system; (4) exit illumination as required by UBC Section 1003.2.9;

For text of item D, see M.R.1300.5300 CORRIDOR CONSTRUCTION.

For text of subps 1 and 2, see M.R.Subp. 3. Group E occupancies. In Group E occupancies, required smoke and draft control assembly doors that separate classrooms or offices from a corridor need not be maintained selfclosing or automaticclosing if: A. the building as defined by the exterior walls, area separation walls, or equivalent, is equipped with an approved automatic sprinkler system; and B. the fire alarm system incorporates automatic smoke detection installed throughout the affected corridors and internal rooms where doors are not maintained selfclosing or automaticclosing. 1300.6100 CONVENTIONAL FOUNDATION CONSTRUCTION. Subpart 1. Conventional foundation construction. The provisions in this part may be used for the design and construction of conventional foundations serving Group R, Division 3, and Group U, Division 1 occupancies subject to the approval of the building official. Other methods may be used provided a satisfactory design is submitted showing compliance with the other provisions of this code. TABLE 2AFoundation wall reinforcement requirements of 12inch thick hollow unit masonry or eightinch thick castinplace (CIP) concrete. Height of Size of vertical reinforcing bars requiredunbalanced when foundation wall is constructed inbackfill soil groups I or II of Table 2B Group I Soil Group II Soil 5 feet No. 4 bars No. 4 bars6 feet No. 4 bars No. 5 bars7 feet No. 4 bars No. 5 bars8 feet No. 5 bars No. 6 bars Notes: 1. All reinforcing is to be installed vertically a maximum of six feet on center. Vertical reinforcing bars must be placed three inches clear maximum from the inside nonpressure face of masonry walls and 11/2 inches clear maximum from the inside face of the CIP walls. 2. Reinforcing may be omitted in wall sections ten feet or less in length that are bounded by wall corners or by wall offsets or returns at least two feet in depth. 3. Reinforced cells of hollow unit masonry must be filled solid with grout having a specified compressive strength at 28 days of 2,000 psi. Reinforcing steel must be ASTM A615 grade 40.4. Hollow masonry units must be ASTM C90 Grade N1 and be installed with Type M or Type S mortar. 5. Castinplace concrete must have a 28day minimum strength of 3,000 psi. 6. Anchor bolts must be installed to align with vertical reinforcing in addition to the locations and in the manner specified in Uniform Building Code, Section 1806.6 or Figure R303 of the One and Two Family Dwelling Code. 7. If foundation walls are parallel to floor framing, solid blocking or diagonal bracing must be installed at the anchor bolt locations in the first two joist or truss spaces. 8. Floor framing must be nailed to the sill plate in accordance with Uniform Building Code Table 23IIB1 or Table R402.3a of the One and Two Family Dwelling Code. In addition, approved metal angle clips must be used to fasten floor joists, trusses, or blocking to the sill plate at the anchor bolt locations. The clips must not be less than 18 gauge and be fastened to the plate and adjoining joists, trusses, or blocking with at least three 11/2 inch by 8d nails in each leg of the clip. 9. Foundation walls must not exceed a height of 81/2 feet, as measured from the basement floor. Height of unbalanced fill must also be measured from the basement floor. 10. Prior to backfilling, foundation walls must be laterally supported by floor construction at both top and bottom or by adequate temporary bracing. 11. A foundation drainage system must be installed, consisting of a foundation drain complying with Uniform Building Code Appendix 1825.3 and 1825.4, section R305.1 of the One and Two Family Dwelling Code, or other approved design. 12. Foundations must also comply with the applicable construction provisions of Uniform Building Code chapters 19 and 21. TABLE 2BTYPES OF SOILS AND THEIR PROPERTIESUnifiedsoilclassifi Volumecation Drainage changeSoil system Charac potentialgroup symbol Soil description teristics expansion

Wellgraded gravels,GW gravel sand mixtures, Good Lowlittle or no fines. Poorly graded gravels orGP gravel sand mixtures Good Lowlittle or no fines.Group IWellgraded sands,SW gravelly sands, Good Lowlittle or no fines.ExcellentPoorly graded sands orSP gravelly sands, little Good Lowor no fines. GM Silty gravels, gravel Good Lowsandsilt mixtures. SM Silty sand, sand Good Lowsilt mixtures.

GC Clayey gravels, gravel Medium Lowsandclay mixtures. Clayey sands, sandclaySC mixture. Inorganic silts Medium Lowand very fine sands,rock flour.Group IISilty or clayey fine sandsML or clayey silts with Medium LowFair slight plasticity. to Good Inorganic clays of lowto medium plasticity,CL gravelly clays, sands, Medium Mediumclays, silty clays,lean clays.

CH Inorganic clays of high Poor Highplasticity, fat clays.Group IIIInorganic silts, micaceousPoor MH or diatomaceous fine Poor Highsandy or silty soils,elastic silts.

OL Organic silts and organicsilty clays of low Poor Mediumplasticity.Group IVOH Organic clays of medium Unsatisto high plasticity, factory Highorganic silts.Unsatisfactory Pt Peat and other highly Unsatisorganic soils. factory High

Table 2B is reproduced by permission of the American Forest and Paper Association (formerly NFPA), Washington, D.C. 1305.0010 ADOPTION OF UNIFORM BUILDING CODE BY REFERENCE. Chapters 1 to 35 and certain appendixes of the 1997 edition of the Uniform Building Code as promulgated by the International Conference of Building Officials, Whittier, California, are incorporated by reference and made part of the Minnesota State Building Code except as qualified by the applicable provisions in chapter 1300, part 1305.0020, and as amended in this chapter. The Uniform Building Code is not subject to frequent change and a copy of the Uniform Building Code, with amendments for use in Minnesota, is available in the office of the commissioner of administration. 1305.0020 APPENDIX CHAPTERS. Subpart 1. Required. Uniform Building Code Appendix Chapters 3, Division I; 12, Division II; 15; 16, Division I; 29; and 31, Division II must be administered by any municipality which has adopted the code. Subp. 2. Optional. UBC Appendix Chapters 3, Division III; and 33 are not mandatory but may be adopted without change at the discretion of any municipality which has adopted the code, except UBC Appendix Chapter 33 may be adopted with a revised fee schedule and bonding requirements. 1305.0107 SECTION 107, FEES. Subpart 1. Section 107.2. UBC Section 107.2, permit fees, is amended by deleting the first paragraph. Subp. 2. Section 107.3. UBC Section 107.3 is amended by amending the first paragraph and adding an exception to the first paragraph to read as follows: 107.3 Plan review fees. When submittal documents are required by Section 106.3.2, a plan review fee must be paid at the time of submitting the submittal documents for plan review. The plan review fee must be 65 percent of the building permit fee. Exception: The plan review fee for dwellings, apartment houses, and their accessory structures may be established by the local authority and must not exceed 65 percent of the building permit fee. 1305.0308 SECTION 308, GROUP I OCCUPANCIES.

For text of subpart 1, see M.R.Subp. 2. Section 308.2.2.1. Section 308.2.2.1 of the UBC is amended to read as follows: UBC Section 308.2.2.1. Group I smoke barriers. Floor levels of Group I occupancies used by inpatients for sleeping or treatment, or having an occupant load of five or more, shall be divided into at least two compartments by smoke barriers of not less than onehour fire resistance meeting the requirements of Section 905.2.3. The area within a smokecontrol zone shall not exceed 22,500 square feet (2,090 m2) and its width or length shall not exceed 150 feet (45,720 mm). The area of a smoke zone shall not be less than that required to accommodate the occupants of the zone plus the occupants from any adjoining zone. Not less than 30 square feet (2.8 m2) net clear floor area for bed and litter patients and six square feet (0.6 m2) net clear floor area for other occupants shall be used to compute the required areas. Doors in smoke barriers shall be tightfitting smoke and draftcontrol assemblies having a fire protection rating of not less than 20 minutes and shall comply with Section 1007.5.1. When doors are installed across corridors, a pair of oppositeswinging doors without a center mullion or horizontal sliding doors that comply with UBC Standard 78, which is part of this code (see UBC Chapter 35, part II), shall be installed. Smoke barrier doors shall: A. when installed across corridors, have vision panels. The area of the vision panels shall not exceed that tested; B. be close fitting with only the clearance necessary for proper operation and shall be without undercuts, louvers, or grilles; C. have stops at the head and jambs. Oppositeswinging corridor doors shall have rabbets or astragals at the meeting edges; D. have positive latching devices, except on doors installed across corridors; and E. be selfclosing or automatic closing. An approved sign shall be adjacent to selfclosing doors specifying that they are to be maintained in a closed position. Doors installed across corridors shall comply with Section 713.6.1, item 3, and doors on the floor or in the affected zone shall automatically close if the fire alarm or sprinkler system is activated. At least two exits shall be provided from each smoke zone. Exits may pass through adjacent zones, provided at least one exit does not return through the compartment zone from which exiting originated. Exit doors at zone boundaries shall be equipped with approved vision panels. A smoke exhaust system as defined in Section 903 shall be provided in each smokecontrol zone of every Group I occupancy. Exception: In other than I3 occupancies, operable windows or fixed windows that can be readily broken by impact may be used in lieu of a smoke exhaust system.

For text of subp 3, see M.R.1305.0704 SECTION 704.5, FIRERESISTIVE MATERIAL OMITTED. UBC 704.5 is amended to read as follows: 704.5 Fireresistive Material Omitted. Fireresistive material is not required at the bottom flange of lintels, shelf angles, and plates, spanning not more than six feet whether part of the structural frame or not, and from the bottom flange of lintels, shelf angles, and plates not part of the structural frame, regardless of span. 1305.0904 SECTION 904, FIRE EXTINGUISHING SYSTEMS. Subpart 1. Section 904.1.2. UBC Section 904.1.2 is amended by adding the following two exceptions. 4. Fireextinguishing systems complying with the National Fire Protection Association Standard for the Installation of Sprinkler Systems, NFPA 131996. 5. When, in the opinion of the fire chief, an adequate alternate water supply for hose stream requirements is provided or available, the water supply requirements for the sprinkler system hose stream demands may be modified. Subp. 2. Section 904.2.4.1. UBC Section 904.2.4.1 is amended as follows: UBC Section 904.2.4.1 General. An automatic sprinkler system shall be installed in Group E, Division I occupancies. Exceptions: 1. (Unchanged). 2. When area separation walls or occupancy separations having a minimum fireresistive rating of not less than two hours separate the E1 occupancy from other occupancies in mixed occupancy buildings exceeding 20,000 square feet, and subdivide the E1 occupancy exceeding 20,000 square feet into compartments such that each compartment contains an aggregate floor area not greater than 20,000 square feet (1,858 m2), an automatic sprinkler system need not be provided. Subp. 3. Section 904.2.9. UBC Section 904.2.9 is amended by adding the following: For the purposes of this section, area separation walls shall not define separate buildings. Subp. 4. Section 904.3.1. UBC Section 904.3.1 is amended by modifying the first paragraph as follows: 904.3.1 Where required. All valves controlling the water supply for automatic sprinkler systems and waterflow switches on all sprinkler systems shall be electrically monitored where the number of sprinklers are 20 or more. Subp. 5. Section 904.3.3. UBC Section 904.3.3 is amended by adding this section as follows: 904.3.3 Valve Security. All valves controlling water supplies for automatic sprinkler systems shall be locked or secured in the open position. Exceptions: 1. Valves located in a room or space when access is limited to essential personnel only. 2. When approved by the building official with concurrence

of the chief of the fire department, alternate means of

providing valve security may be provided. Subp. 6. Section 904.4. UBC Section 904.4 is amended by adding the following three exceptions: 6. At the top of elevator shafts when the shaft is of noncombustible construction. 7. In the machine rooms of tractiontype elevators which are located on top of the elevator shaft and are separated from other areas of the building, other than the shaft, by not less than a onehour fireresistive occupancy separation. 8. On the ceiling of rooms containing swimming pools when the pool is used exclusively for swimming purposes and when sprinklers are provided around the perimeter of the pool area. Subp. 7. Table No. 9A. UBC Table No. 9A is amended as follows: Item No. 2 under the occupancy column of Table No. 9A is

amended to read as follows: Occupancies three stories or more but less than 150 feet in

height, except Group R Division 37. Class II standpipes are not

required in Group E or Group R1 occupancies. UBC Table No. 9A is amended by adding footnotes 8 and 9 to

item No. 2 to read as follows: 8 In municipalities that have adopted the special fire

protection system criteria specified in Minnesota Rules, chapter

1306, the number of stories must be four or more. 9 If an approved automatic fire extinguishing system

required by Section 904 is installed, the number of stories must

be four or more. In the column entitled Nonsprinklered Building, footnote 1

is deleted. Item No. 1 under the Hose Requirement column for

Nonsprinklered Building is amended to read as follows: No Item No. 1 under the Standpipe Class column for Sprinklered

Buildings is amended to read as follows: III Item No. 2 under the Occupancy column is amended to read as

follows: Occupancies three stories or more but less than 150

feet in height, except Group R Division 3678. Item No. 2 under the Standpipe Class for Nonsprinklered

Building is amended to read as follows: III Item No. 2 under the Hose Requirement column for

Nonsprinklered Building is amended to read as follows: No Item No. 2 under the Standpipe Class for Sprinklered

Building is amended to read as follows: III Item No. 3 under the Occupancy column is amended to read as

follows: Group A Occupancies with occupant load exceeding

1,000 5. Item No. 3 under the Standpipe Class for Nonsprinklered

Building is amended to read as follows: III Item No. 3 under the Hose Requirement column for

Nonsprinklered Building is amended to read as follows: No Item No. 4 under the Occupancy column is amended to read as

follows: Group A, Division 2.1 Occupancies over 12,000 square

feet in area used for exhibition. Item No. 4 under the Standpipe Class for Nonsprinklered

Building is amended to read as follows: III Item No. 4 under the Hose Requirement column for

Nonsprinklered Building is amended to read as follows: No Item No. 4 under the Standpipe Class column for Sprinklered

Building is amended to read as follows: III Item No. 4 under the Hose Requirement column for

Sprinklered Building is amended to read as follows: No Item No. 5 under the Occupancy column is amended to read as

follows: Groups I; H; B; M Occupancies less than four stories

in height but greater than 20,000 square feet per floor 6. Item No. 5 under the Standpipe Class column for

Nonsprinklered Building is amended to read as follows: III Item No. 5 under the Hose Requirement column for

Nonsprinklered Building is amended to read as follows: No Item No. 6 under the Occupancy column is amended to read as

follows: Groups S and F, Division 1 Occupancies less than four

stories in height but greater than 20,000 square feet per

floor 6. Item No. 6 under the Standpipe Class column for

Nonsprinklered Building is amended to read as follows: II or

III 1,4. Item No. 6 under the Hose Requirement column for

Nonsprinklered Building is amended to read as follows: Yes Item No. 6 under the Standpipe Class column for Sprinklered

Building is amended to read as follows: No requirement Item No. 6 under the Hose Requirement for Sprinklered

Building is amended to read as follows: No UBC Table No. 9A footnote 1 is amended to read as follows:

Class II standpipes need not be provided in basements having an

automatic fireextinguishing system throughout. UBC Table No. 9A footnote 2 is amended to read as

follows: The standpipe system may be combined with the

automatic sprinkler system. In buildings four or less stories

in height which are protected throughout by an automatic

sprinkler system, a standpipe system need only meet the pressure

requirements for the sprinkler system. UBC Table No. 9A footnote 5 is amended to read as follows:

Class II standpipes need not be provided in assembly areas used

solely for worship. UBC Table No. 9A is amended by adding footnote 7 to read

as follows: If an approved automatic fire extinguishing system

required by Section 904 is installed, the number of stories must

be four or more. UBC Table No. 9A is amended by adding footnote 8 to read

as follows: In municipalities that have adopted the special

fire protection system criteria specified in chapter 1306, the

number of stories must be four or more. Subp. 8. Section 904.5.1 UBC Section 904.5.1 is amended by

adding the following exception: Exception: In buildings four or less stories in height

which are protected throughout by an approved automatic

sprinkler system, a Class I or III standpipe system need only

meet the pressure requirements for the sprinkler system. 1305.1000 CHAPTER 10, MEANS OF EGRESS. Subpart 1.

Section 1003.3.1.10.

UBC Section 1003.3.1.10 is amended in the first paragraph by changing the designation "Group I, Division 2" to "Group I Division 1.1." Subp. 2.

Section 1003.3.3.6.

UBC Section 1003.3.3.6, the last sentence of the second paragraph, is amended to read as follows: Ends shall be returned or shall terminate in newel posts or safety terminals. Subp. 3.

Section 1005.3.3.7.

UBC Section 1005.3.3.7, Pressurized Enclosure, is amended by adding the following: The minimum design pressure difference within the enclosure shall be 0.15 inch water gage positive pressure relative to atmospheric pressure with all doors closed. Subp. 4.

Section 1005.3.3.7.1.

UBC Section 1005.3.3.7.1, Vestibules, is deleted in its entirety. Subp. 5.

Section 1007.5.8.

Section 1701.2.

UBC Section 1701.2 is amended by adding the following sentence: When approved by the building official, the structural engineer of record or that engineer's employee may serve as a special inspector for types of work for which the engineer or employee is qualified. Subp. 2.

Section 1701.5.1.

UBC Section 1701.5.1 is amended by adding an exception 5 as follows: 5. When acceptable to the structural engineer of record and the building official, and subject to the requirements of Section 1701.6.2, special inspections may be performed on a periodic basis during the placing of concrete provided all reinforcing steel and prestressing steel tendons are inspected in accordance with Section 1701.5.4. 1305.2320 SECTION 2320, BLOCKING. UBC Section 2320.12.8 is amended to read as follows: 2320.12.8. Blocking. Roof rafters and ceiling joists must be supported laterally to prevent rotation and lateral displacement when required by Division III, Part I, Section 4.4.1.2. 1305.3401 SECTION 3401, EXISTING STRUCTURES. UBC Section 3401, General, is amended by adding the following to the last paragraph: This publication may be used as a guide to evaluate and implement the following: The provisions of Section 3403, Additions, Alterations, or Repairs; The exception to 3405, Change in Use; Alternative designs or methods of construction relating to the alternation of existing buildings. 1305.4313 UBC APPENDIX CHAPTER 3, DIVISION I DETENTION AND CORRECTIONAL FACILITIES. UBC Section 313, Scope, is amended as follows: The provisions of this chapter apply to the design and construction of Group I, Division 3 occupancies housing mental hospitals, mental sanitariums, jails, prisons, reformatories, and buildings where personal liberties of inmates are similarly restrained. UBC Section 315, Definitions, is amended by adding the following definitions: "Cell, multipleoccupancy" is a housing area in a detention or correctional facility designed to house no less than three or more than 48 inmates. "Smoke management system" is an engineered combined system that utilizes a mechanical smokecontrol system and mechanical smoke exhaust system. For definitions of mechanical smokecontrol system and mechanical smoke exhaust system, see UBC Section 903. UBC Section 317, Compartmentation, is amended by amending the first paragraph to read as follows: Every story having an occupant load of more than five inmates in a detention or correctional facility shall be divided into not less than two approximately equal compartments by a smoke barrier, constructed pursuant to the provisions of part 1305.0308, subpart 2. In addition, multitiered cell complexes shall be separated from each other and the remaining portions of the facility by a smoke barrier. Vision panels shall not be required within exit doors at zone boundaries as stated in part 1305.0308, subpart 2, item E. UBC Section 318, Occupancy Separations, is amended by adding exception 2 to read as follows: 2. Regardless of the provisions of Table 3B, a threehour fireresistive occupancy separation as set forth in Section 302.3, may be used between a Group I, Division 3 occupancy and vocational shops and similar uses containing hazardous materials, normally otherwise classified as Group H, Divisions 2 through 7 occupancies. UBC Section 319, Glazing, is amended to read as follows: In restraint areas of fully sprinklered detention and correctional facilities, the area of glazing in onehour corridor walls is not restricted, provided: 1. All glazing is approved onefourth inch thick (6.4 mm) wired glass or other approved firetested glazing material set in steel frames. Exception: Laminated security glazing may be used provided the glass shall be protected on both sides by a sprinkler system equipped with listed quick response sprinklers. The sprinkler system shall completely wet the entire surface of the glass wall when actuated. 2. In lieu of the sizes set forth in Section 1004.3.4.3.2, the size and area of wired glass assemblies shall conform to Sections 713.7 and 713.8. Other glazing material shall not exceed the sizes and areas specified in the fire test. When necessary to maintain direct visual supervision by facility staff, laminated security type glazing may be used in fireresistive wall and door assemblies up to a twohour fire protection rating provided: 2.1 The fireresistive wall or door assembly is not part of a required area separation wall, stairway, ramp, or escalator enclosure. 2.2 The glass shall be protected on both sides by a sprinkler system equipped with listed quick response sprinklers. The sprinkler system shall completely wet the entire surface of the glass wall when actuated. 2.3 The area of the glazing shall not exceed 25 percent of the common wall of the area requiring supervision. 2.4 The area of glazing in fireresistive door assemblies shall be limited to 1,296 square inches per light. UBC Section 321, Automatic Sprinkler and Standpipe Systems, is amended by amending the first paragraph as follows: 321.1 General. Every building or portion of a building housing a detention or correctional facility or similar occupancy shall be protected by an automatic sprinkler system conforming to the provisions of UBC Standard 91. The main sprinkler control valve or valves or all other control valves in the system shall be electrically supervised so that at least a local alarm will sound at a constantly attended location when valves are closed. UBC Section 323.1, Smoke Management System, is amended to read as follows: 323.1 Smoke management system. A mechanically operated smoke management system or systems shall be provided in every multitiered cell complex within a detention or correctional facility. For other than multitiered cell complexes, see Sections 323.9 and 323.10. UBC Section 323.2, Design and Installation, is amended by adding the following exception: Exception: A smoke management system or systems may be designed in accordance with the provisions of Section 905 for mechanical smoke control and mechanical smoke exhaust systems. UBC Section 323.4, Manual Controls, is amended to read as follows: 323.4 Manual controls. A firefighter's control panel shall be provided in accordance with Sections 905.13 and 905.14. UBC Section 323, Smoke Management, is amended by adding the following: 323.9 Smoke exhaust system. A mechanical smoke exhaust system as defined in Section 903 shall be provided in each smoke compartment of every detention or correctional facility. Exception: Buildings or portions of buildings provided with an approved smoke management system. 323.10 Design and Installation of Smoke Exhaust System: 1. Mechanical airhandling equipment may be designed to accomplish smoke removal. Under fire conditions, the return and exhaust air, in zones where smoke is detected, shall be moved directly to the outside without recirculation to other sections of the building. The air handling system shall provide a minimum of six exhaust air changes per hour for the area involved. 2. Any other approved design which will produce equivalent results. UBC Section 324.1, Number of Means of Egress, is amended to read as follows: 324.1 Number of means of egress. Multipleoccupancy rooms and day rooms in buildings or portions of buildings in detention or correctional facilities constructed of not less than onehour fireresistive construction shall be provided with a minimum of two means of egress when the occupant load is more than ten. The occupant load of any restraint area shall be determined by Table 10A and classified as to the occupancy group it most nearly resembles, and means of egress shall be provided as required by Section 1003.1. A minimum of two means of egress shall be provided in all areas of restraint (cells, day rooms, cell tiers, and cell complexes) within a detention or correctional facility when the occupant load is more than ten. UBC Section 324.5, Deadend Balconies, is amended to read as follows: 324.5 Deadend balconies. Exitaccess balconies serving cell tiers shall not extend more than 20 feet beyond an exit stairway. Note: For number of means of egress, see Section 1004.2.3. UBC Section 326.6 324.6, Electrically Operable Doors, is amended by deleting the last sentence. 1305.4332 UBC APPENDIX CHAPTER 3, DIVISION III, ONE AND TWOFAMILY DWELLING CODE ADOPTED. UBC Appendix Chapter 3, Division III, Section 332, is amended by substituting the 1995 edition with the 1992 edition and adding an exception to read as follows: Exception: 1. For energy requirements, see Minnesota Rules, chapter 7670. 2. For plumbing code requirements, see Minnesota Rules, chapter 4715. 3. For electrical requirements, see Minnesota Rules, chapter 1315. 4. For mechanical code requirements, see Minnesota Rules, chapter 1346. 5. For snow load requirements, see Minnesota Rules, chapter 1305. 6. For frost depth requirements, see Minnesota Rules, chapter 1300. 7. For ice dam roof treatment, see Minnesota Rules, chapter 1300. 8. For guardrail opening dimension, see UBC Section 509.3. 9. Smoke detectors shall be installed in each sleeping room as required in UBC Section 310.9.1.4. 10. For a new exception to the second paragraph of R215.1, smoke detectors required, see Minnesota Rules, part 1305.0310. 11. For emergency egress or rescue windows having a finished sill height below the adjacent ground elevation, a window well shall be installed as specified in UBC Section 310.4.12. All references to design values for joists, rafters, and those in Header Tables R402.6a and R402.6b are deleted and replaced with UBC Tables 23IVV1 and 23IVV2. 1305.4415 UBC APPENDIX CHAPTER 15, REROOFING. Subpart 1. Chapter 15. UBC Appendix Chapter 15 is amended by deleting the first paragraph of section 1515.1, 1515.2.1, and the subheading under the title of Table A15A. Subp. 2. Section 1520. UBC Appendix Section 1520 is amended by deleting all but the first sentence. 1305.4416 UBC APPENDIX CHAPTER 16, DIVISION I, SNOW LOAD DESIGN. UBC Appendix Section 1637.1 is amended by adding an exception to read as follows: Exception: The minimum roof snow loads established herein for R3 and U occupancies are not subject to decrease or increase as specified in this chapter. UBC Appendix Section 1638 is amended by changing the reference in notation Wb, 500 feet, to 200 feet. UBC Appendix Section 1639 is amended to read as follows: The ground snow load, Pg, to be used in the determination of design snow loads for buildings and other structures shall be 57 pounds per square foot in the following counties: Anoka, Carlton, Carver, Chisago, Cook, Dakota, Hennepin, Isanti, Lake, Pine, Ramsey, St. Louis, Scott, and Washington. The ground snow load, Pg, to be used in the determination of design snow loads for buildings and other structures shall be 43 pounds per square foot in all other counties. Exceptions: 1. A minimum roof snow load of 40 pounds per square foot of horizontal projection shall be acceptable for R3 occupancies in the counties of Anoka, Carlton, Carver, Chisago, Cook, Dakota, Hennepin, Isanti, Lake, Pine, Ramsey, St. Louis, Scott, and Washington. A minimum roof snow load of 30 pounds per square foot of horizontal projection shall be acceptable for R3 occupancies in all counties. 2. A minimum roof snow load of 30 pounds per square foot of horizontal projection shall be acceptable for detached Group U occupancies in all counties. UBC Appendix Section 1645 is deleted in its entirety. UBC Table A16A, Snow Exposure Coefficient (Ce), is deleted and replaced with the following: The snow exposure coefficient (Ce) for all of Minnesota is established as 0.7. UBC Table A16B, Values for Occupancy Importance Factor (I) is deleted, and replaced with the following: The occupancy importance factor (I) for all of Minnesota is established as 1.0. 1305.4429 UBC APPENDIX CHAPTER 29, MINIMUM PLUMBING FIXTURES. UBC Appendix Section 2905 is amended by adding the following: Exceptions: 1. Where circumstances dictate that a different ratio is needed, an adjustment may be approved by the building official. 2. The actual number of students can be used in lieu of the 50 square feet per occupant specified in Group E, Division 1 occupancy areas. For assembly occupancies in conjunction with a Group E, Division 1 occupancy, refer to Group A of Table A29A. Sanitation facilities required by this chapter may have controlled access but in all cases shall be maintained available during the time of building occupancy for those occupants e.g., clientele, employees, customers, etc., determined in accordance with Table A29A.

REPEALER. Minnesota Rules, parts 1365.0050; 1365.0100; 1365.0200; 1365.0300; 1365.0400; 1365.0500; 1365.0600; 1365.0700; 1365.0800, are repealed.