City of De Soto, MO
Jefferson County
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Table of Contents
Table of Contents
Cross References — As to fire prevention code, see ch. 205; as to swimming pools, see ch. 515; as to stormwater and erosion control, see ch. 425.
Editor's Note — Ord. no. 3718 §1, adopted January 22, 2007, repealed ch. 500 and enacted new provisions set out herein. Former ch. 500 derived from CC 1988 §§6-1 — 6-3, 6 — 7, 20-1 — 20-2; ord. no. 3025 §§1 — 3, 2-17-1990; ord. no. 3300 §1, 3-17-1997; ord. no. 3302 §1, 3-17-1997; ord. no. 3520 §1, 3-17-2003; ord. no. 3522 §1, 3-17-2003.
Article I Building, Existing Building, Residential, Mechanical, Plumbing, Energy Conservation, Fuel Gas, Urban-Wildland Interface and Electrical Codes
Article II Building Regulations
[Ord. No. 3718 §1, 1-22-2007; Ord. No. 3887 §1, 5-16-2011]
A. 
International Building Code. A certain code, two (2) copies of which are on file in the office of the City Clerk of the City of De Soto, Missouri, being marked and designated as "The International Building Code, 2009 Edition" as published by the International Code Council is hereby adopted as the Building Code of the City of De Soto, Missouri regulating and governing the conditions and maintenance of all property, buildings and structures; by providing the standards for supplied utilities and facilities and other physical things and conditions essential to ensure that structures are safe, sanitary and fit for occupation and use; and the condemnation of buildings and structures unfit for human occupancy and use and the demolition of such structures as herein provided; providing for the issuance of permits and collection of fees therefore; and each and all of the regulations, provisions, penalties, conditions and terms of said Building Code on file in the office of the City of De Soto are hereby referred to, adopted and made a part hereof, as if fully set out in this Article.
B. 
Existing Building Code. A certain code, one (1) copy of which is on file in the office of the City Clerk of the City of De Soto, Missouri, being marked and designated as "The International Existing Building Code, 2009 Edition", as published by the International Code Council, is hereby adopted as the Existing Building Code of the City of De Soto, Missouri regulating and governing the repair, alteration, change of occupancy, addition, and relocation of existing buildings, including historic buildings, as herein provided; and each and all of the regulations, provisions, conditions and terms of said Existing Building Code on file in the office of the City of De Soto are hereby referred to, adopted and made a part hereof, as if fully set out in this Article.
C. 
Residential Code. A certain code, two (2) copies of which are on file in the office of the City Clerk of the City of De Soto, Missouri, being marked and designated as "The International Residential Code, 2009 Edition", including entire Appendix as published by the International Code Council, is hereby adopted as the Residential Code of the City of De Soto, Missouri regulating and governing the construction, alteration, movement, enlargement, replacement, repair, equipment, location, removal and demolition of detached one- and two-family dwellings and multiple single-family dwellings (town houses) not more than three (3) stories in height with separate means of egress as herein provided; and each and all of the regulations, provisions, conditions and terms of said Residential Code on file in the office of the City of De Soto are hereby referred to, adopted and made a part hereto, as if fully set out in this Article.
D. 
Mechanical Code. A certain code, one (1) copy of which is on file in the office of the City Clerk of the City of De Soto, Missouri, being marked and designated as "The International Mechanical Code, 2009 Edition", as published by the International Code Council, is hereby adopted as the Mechanical Code of the City of De Soto, Missouri regulating and governing the design, construction, quality of materials, erection, installation, alteration, repair, location, relocation, replacement, addition to, use or maintenance of mechanical systems as herein provided; and each and all of the regulations, provisions, conditions and terms of said Mechanical Code on file in the office of the City of De Soto are hereby referred to, adopted and made a part hereto, as if fully set out in this Article.
E. 
Plumbing Code. A certain code, one (1) copy of which is on file in the office of the City Clerk of the City of De Soto, Missouri, being marked and designated as "The International Plumbing Code, 2009 Edition", as published by the International Code Council, is hereby adopted as the Plumbing Code of the City of De Soto, Missouri regulating and governing the design, construction, quality of materials, erection, installation, alteration, repair, location, relocation, replacement, addition to, use or maintenance of plumbing systems as herein provided; and each and all of the regulations, provisions, conditions and terms of said Plumbing Code on file in the office of the City of De Soto are hereby referred to, adopted and made a part hereto, as if fully set out in this Article.
F. 
Energy Conservation Code. A certain code, one (1) copy of which is on file in the office of the City Clerk of the City of De Soto, Missouri, being marked and designated as "The International Energy Conservation Code, 2003 Edition", as published by the International Code Council, is hereby adopted as the International Energy Conservation Code of the City of De Soto, Missouri regulating and governing efficient building envelopes and installation of energy efficient mechanical, lighting and power systems as herein provided; and each and all of the regulations, provisions, conditions and terms of said Energy Conservation Code on file in the office of the City of De Soto are hereby referred to, adopted and made a part hereto, as if fully set out in this Article.
G. 
Fuel Gas Code. A certain code, one (1) copy of which is on file in the office of the City Clerk of the City of De Soto, Missouri, being marked and designated as "The International Fuel Gas Code 2003 Edition", as published by the International Code Council, is hereby adopted as the Fuel Gas Code of the City of De Soto, Missouri regulating and governing fuel gas systems and gas-fired appliances as herein provided; and each and all of the regulations, provisions, conditions and terms of said Fuel Gas Code on file in the office of the City of De Soto are hereby referred to, adopted and made a part hereto, as if fully set out in this Article.
H. 
Urban-Wildland Interface Code. A certain code, one (1) copy of which is on file in the office of the City Clerk of the City of De Soto, Missouri, being marked and designated as "The International Urban-Wildland Code 2003 Edition", as published by the International Code Council, is hereby adopted as the Urban-Wildland Interface Code of the City of De Soto, Missouri regulating and governing the mitigation of hazard to life and property from the intrusion of fire from wildland exposures, fire from adjacent structures and prevention of structure fires from spreading to wildland fuels as herein provided; and each and all of the regulations, provisions, conditions and terms of said Urban-Wildland Interface Code on file in the office of the City of De Soto are hereby referred to, adopted and made a part hereto, as if fully set out in this Article.
I. 
Electrical Code. A certain code, three (3) copies of which are on file in the office of the City Clerk of the City of De Soto, Missouri, being marked and designated as the "National Electrical Code, 2005 Edition", as published by the National Fire Protection Association, is hereby adopted as the Electrical Code of the City of De Soto, Missouri to provide for the regulation and control of design, construction, quality of materials, erection, installation, alteration, repair, location, relocation, replacement, addition to, use or maintenance of electrical systems in the City of De Soto; and each and all of the regulations, provisions, conditions and terms of said National Electrical Code, and the referenced standards mentioned therein are hereby referred to, adopted and made a part hereof, as if fully set out in this Article.
[Ord. No. 3718 §1, 1-22-2007; Ord. No. 3719 §1, 2-21-2007; Ord. No. 3768 §1, 5-19-2008; Ord. No. 3887 §1, 5-16-2011]
A. 
The International Building Code is amended and changed in the following respects:
CHAPTER 1 OF (THE INTERNATIONAL BUILDING CODE)
The following Sections of the International Building Code, 2009 Edition, are revised as follows:
1. 
Amend Section 101.1 Title: Insert "City of De Soto, Missouri".
2. 
Amend Section 101.2.1 Appendices to read: "Appendix H Signs is hereby adopted."
3. 
Amend Subsection 101.4.3 Plumbing by replacing "International Private Sewage Disposal Code" with "Jefferson County On-Site Sewage Treatment Code" where it appears in the International Building Code 2009.
4. 
Amend Section 103.2 to read: "The Building Official, under the code, shall be the City Manager or the duly authorized representative of the City Manager."
5. 
Amend Section 105.1 by adding to the end of the paragraph: "A copy of the real estate tax bill, from the prior year, must be accompanied with the building permit application."
6. 
Amend Section 107.2.5 by adding to the end of the paragraph: "The owner must have the corners of the property marked as well as the proposed building staked as to position on the lot. The position of the building on the property will be shown on a site plan submitted prior to issue of a building permit."
7. 
Amend Section 109.2. Fee Schedule by adding schedule:
a. 
Residential and Commercial New Construction. The permit fee shall be 30 cents ($.30) per square foot from April 1, 2011 through March 31, 2012. Thereafter, the fee will increase 3% annually on April 1st.
b. 
Remodeling Permit. Shall be the fee "times" the square footage divided by two (2) or the number of times an inspection is needed, whichever is less.
c. 
All other permits, or in the case where an area cannot be determined or is impractical to be determined. The non-refundable permit fee shall be $25.00.
d. 
Payment. All permit fees shall be paid prior to construction.
e. 
Re-Inspections. Permit fees will cover up to ten (10) inspections. After 10 inspections a fee of $25.00 will be charged for each inspection. This Section does not apply to commercial inspections.
8. 
Amend Section 110.3.5 by replacing "Shall be made" with "may be made".
9. 
Amend Section 113. Board of Appeals by deleting Sections 113.1, 113.2, 113.3 and inserting in lieu thereof the following:
SECTION 113. MEANS OF APPEAL.
SECTION 113. APPLICATION FOR APPEAL. (INTERNATIONAL BUILDING CODE, INTERNATIONAL EXISTING BUILDING CODE, INTERNATIONAL RESIDENTIAL CODE, INTERNATIONAL MECHANICAL CODE, INTERNATIONAL PLUMBING CODE, INTERNATIONAL ENERGY CONSERVATION CODE, INTERNATIONAL FUEL GAS CODE, INTERNATIONAL URBAN-WILDLAND INTERFACE CODE AND NATIONAL ELECTRICAL CODE).
A. 
Application. Any person aggrieved by a decision of the Code Official shall have the right to appeal that decision to the Board of Adjustment established in Section 405.410, De Soto Code. An application for appeal shall be based on a claim that the true intent of the International Building Code, International Existing Building Code, International Residential Code, International Mechanical Code, International Plumbing Code, International Energy Conservation Code, International Fuel Gas Code, International Urban-Wildland Interface Code, or the National Electrical Code, or the rules legally adopted thereunder, have been incorrectly interpreted, the provisions of this code do not fully apply, or that the Code Official agrees that an equally good or better method of construction is used. The application shall be filed on a form obtained from the Code Official within (30) days after the notice was served or the decision made by filing the application with the Code Official and with the Board of Adjustment. The Code Official shall forthwith transmit to the Board of Adjustment all the papers constituting the record upon which the action appealed from is taken. The Board shall fix a reasonable time for hearing the appeal, provide reasonable notice to the parties and decide the same within a reasonable time. Meetings of the Board of Adjustment shall be held in compliance with Section 405.410, De Soto Code.
B. 
Meetings — procedure. Meetings of the Board of Adjustment shall be held in compliance with Section 405.410, De Soto Code.
C. 
Resolution. The decision of the board shall be by resolution. Certified copies shall be furnished to the applicant and to the Code Official.
D. 
Board Decision.
1. 
The Board of Adjustment may modify or reverse the decision of the Code Official by the concurring vote of four (4) members of the Board of Adjustment. Otherwise, the decision will be affirmed.
2. 
The Code Official shall take immediate action in accordance with the decision of the Board of Adjustment.
E. 
Court Review. Appeals to the Circuit Court by any person aggrieved by a decision of the Board of Adjustment shall be made in the manner and time required by law following the issuance of the decision by the Board of Adjustment.
F. 
Penalty for Violations. (International Building Code, International Existing Building Code, International Residential Code, International Mechanical Code, International Plumbing Code, International Energy Conservation Code, International Fuel Gas Code, International Urban-Wildland Interface Code and National Electrical Code). Any person, firm or corporation who shall violate any of the provisions of this Chapter or the codes herein adopted, or who shall fail to comply with any of the requirements thereof, or who shall fail to comply with any order issued pursuant to any Section thereof shall be guilty of a misdemeanor, and upon conviction, shall be punished by a fine not exceeding five hundred dollars ($500.00), or by imprisonment for a period not to exceed three (3) months, or by both such fine and imprisonment, and court costs for each such offense. Each day a violation exists or continues to exist shall be deemed a separate offense.
10. 
Amend Subsection 406.1.4 Separation #1 by replacing "½ inch" with "5/8 inch", and by replacing "1 3/8 inch" with "1 ¾ inch".
11. 
Amend Section 1807.2.1 Retaining Walls to read: "Retaining walls over six (6) feet shall be designed by an engineer to ensure stability against overturning, sliding, excess foundation pressure and water uplift. Retaining walls shall be designed for a safety factor of 1.5 against lateral sliding and overturning."
"Exception: Poured concrete and wood crafted retaining walls not exceeding six feet in height shall not require engineering but shall meet all other design requirements. Pre-manufactured block retaining system of a modular nature shall follow manufacturer's specifications. Modular retaining wall systems over six feet in height shall require engineered design supervision. Retaining walls of wood construction shall be preservative treated in accordance with Chapter 23 of the International Building Code".
[Ord. No. 3718 §1, 1-22-2007; Ord. No. 3887 §1, 5-16-2011]
The International Existing Building Code is amended and changed in the following respects:
CHAPTER 1 OF (THE INTERNATIONAL EXISTING BUILDING CODE)
The following Sections of the International Existing Building Code, 2009 Edition, are revised as follows:
1. 
Amend Section 101.1: Insert "City of De Soto, Missouri".
2. 
Amend Section 103.2 by replacing the entire Section with: "The Building Official, under the code, shall be the City Manager or the duly authorized representative of the City Manager."
3. 
Amend Section 105.1 by adding to the end of the paragraph: "A copy of the real estate tax bill for the prior year must be accompanied with the building permit application."
4. 
Amend Section 106.2 by adding to the end of the paragraph: "The owner must have the corners of the property marked as well as the proposed building staked as to position on the lot. The position of the building on the property will be shown on a site plan submitted prior to issue of a building permit."
5. 
Amend Section 108.2. Schedule of Permit Fees to read: See "Fee Schedule" as provided in Section 500.020.
6. 
Amend Section 112. Means of Appeal to read: See "Means of Appeal" as provided in Section 500.020.
[Ord. No. 3718 §1, 1-22-2007; Ord. No. 3887 §1, 5-16-2011]
The International Residential Code is further amended and changed in the following respects:
CHAPTER 1 (OF INTERNATIONAL RESIDENTIAL CODE)
The following Sections of the International Residential Code, 2009 Edition, are revised as follows:
1. 
Amend Section R101.1: Insert "City of De Soto, Missouri".
2. 
Amend Section R103.2 by replacing the entire Section with: "The Building Official, under the code, shall be the City Manager or the duly authorized representative of the City Manager."
3. 
Amend Section R104.10.1 to read: Refer to City Code Article IV Section 420.120.
4. 
Amend R105.2 by deleting: Work exempt from permit #1, #2, #4, #5, #7, #10 — Decks not exceeding 200 square feet in area and no more than 30 inches above grade at any point....
5. 
Amend Section R110.3 by deleting #8 - If an automatic sprinkler system is provided and whether the sprinkler system is required (means we are not requiring sprinkler in residential houses).
6. 
Amend Section R112 to read: See "Means of Appeal" as provided in Section 500.020 of this ordinance.
7. 
Amend Section R113 to read: See "Penalty for Violations" as provided in Section 500.020 of this ordinance.
8. 
Amend Subsection R301.2 (1) Table by inserting the following information:
Roof Snow Load:
20
Wind Speed (mph):
90
Seismic Design Category:
D-0
Subject to Damage from Weathering:
Severe
Frost line Depth:
30
Termite:
M to H
Decay:
S to M
Winter Design Temp:
8
Ice barrier required:
No
Flood Hazards:
Firm
Air Freezing Index:
1000
Mean annual temp:
55
9. 
Amend Subsection R302.1 Exterior Walls: #2 to read: Cantilevered manufactured fireplaces", add #6 "Roof Eave overhangs" and #7 "Uncovered decks". (Copy from Jefferson County see Table R302.1 page 49)
10. 
Amend Subsection R302.5.1 Opening protection by replacing 1 3/8 inches (35 mm) with 1 ¾ inches (45 mm). (Copy from Jefferson County, more strict by making in 1 ¾)
11. 
Amend Subsection R302.6 Dwelling/garage fire separation by replacing "The garage shall be separated as required by Table R302.6" with "The garage shall be separated by 5/8" fire code gypsum board, type X."
12. 
Amend Subsection R303.4.2 Exhaust openings to read "Exhaust air shall not be directed below 6 feet and 8 inches onto a walkway. (Copy from Jefferson County)
13. 
Amend Section R309.1 Floor surface by adding the following to the end of this Section: "In private garage with end entry located beneath habitable rooms, the floor shall be a minimum of four inches (4") lower than the adjacent basement floor."
14. 
Add Subsection R309.3.1 All floors "Minimum thickness of garage floors shall be four inch (4") concrete with one-half inch (½") rebar two foot (2') on center each way or 6" X 6" X 10" welded wire. The above specifications shall also apply to carports and detached garages."
15. 
Add Subsection R309.4.1 Pavilion: Pavilion structures shall be open on at least two sides. If motorized equipment (vehicle, lawnmower, etc.) are stored underneath, the structure becomes a "carport" and comes under the provisions of Section 309.2. (Copy from Jefferson County)
16. 
Add Subsection R309.5.1. Pre-Manufactured Accessory Structures Anchoring System. Accessory structures must be anchored into the ground to sufficiently withstand a 90 mph wind. There are three types of acceptable anchoring systems other than a full foundation with frost-protected footing.
a. 
Slab. A minimum of four inch (4") concrete with a four inch (4") subgrade of suitably compacted materials one-half inch (½") anchor bolts placed six feet (6') on center with three inch (3") minimum embedment in concrete.
b. 
Auger Tie Down. Similar to manufactured home tie downs with a minimum of two per side — max spacing ten feet (10') on center. See manufacturer's details on installation into the ground.
c. 
Piers. Sheds built on 4 X 4 skids may be anchored into a concrete pier system. Piers shall be 8" X 8" X 30" deep and shall be spaced a maximum of eight feet (8') on center. Piers shall be located directly under the structural floor frame of the shed.
17. 
Add Subsection R309.5.2 Location. Pre-Manufactured structures shall be located in accordance with the City of De Soto zoning regulations.
18. 
Add Subsection R309.5.3 Accessory structures closer than ten feet (10') to a habitable structure shall be protected with a one-hour fire partition.
19. 
Amend Subsection R311.2 Egress door by replacing 32" and 78" with 36" and 80" respectively.
20. 
Add Subsection 311.4.1. Interior passage doors shall have the minimum width of two feet and six inches (2' 6").
Exception: Bathroom doors may be two feet four inches (2' 4").
21. 
Add Subsection R401.3.1 "Upon final inspection, if the yard is not graded, seeded and straw placed due to inclement weather and the title company has not escrowed monies for the grading, seeding and placement of straw for the yard, then the City may require a refundable deposit of two thousand dollars ($2,000.00) or a reasonable amount determined by the City to ensure that the grading, seeding and placement of straw is completed within a reasonable time."
[Ord. No. 4048 §1, 9-21-2015]
22. 
Delete Table R403.1.
23. 
Amend Subsection R403.1.1 Minimum size to read: "All footings shall have a minimum of two (2) one-half inch (½") rebar. The minimum size for all footings shall be eight inches (8") thick by sixteen inches (16") wide. In one- and two-family dwellings the minimum footing size shall be:
Slab and crawl space one story
8" x 16"
One story
8" x 20"
One and one-half story
8" x 22"
Two story
8" x 24"
Add two inches (2") for ten inch (10") walls
Add two inches (2") to the width of the footing when a log home is built. In all other buildings, the footing shall be designed to carry the load applied on it. All footings must have a key-way.
24. 
Amend Section R403.1.4.1 Frost Protection by deleting item #2, item #3 and exceptions. (Copy from Jefferson County, this keeps homeowners from building light frame construction with no footing or pier)
25. 
Delete Section R403.3. (Copy from Jefferson County, keep from allowing shallow footings)
26. 
Add Subsection R405.1 No ground water present: Provide drain tile, perforated pipe, or other approved foundation drainage systems (such as water channel system) around perimeter of the outside of the foundation and inside the foundation. Drain discharge shall be by gravity to daylight or be connected to a basement floor sump.
27. 
Add Subsection R405.1.2 Filter Membranes: An approved filter membrane shall be placed over the top of the joints/pipe perforations. The tile/pipe shall be placed on 2" minimum gravel or crushed stone and have 6" minimum cover.
28. 
Add Subsection R405.1.4 Damp Proofing: Provide damp proofing of floor slab with a 6 mil polyethylene film below slab, with joints in membrane lapped a minimum of 6" and sealed.
29. 
Add Subsection R405.2. Groundwater present: Provide drain tile, perforated pipe or other approved foundation drainage system both inside and outside of foundation.
30. 
Add Subsection R405.2.1 Drainage System: Drainage system shall discharge by gravity to daylight or be connected to an approved sump (18" in diameter x 24" deep with fitted cover) having a sump pump that discharges into an approved disposal system or to daylight. (All of the above copy from Jefferson County)
31. 
Amend Subsection R602.3 Design and construction by adding: Exception "#2 Headers can be on top of an opening in a wall". (Copy from Jefferson County)
32. 
Amend Subsection R602.3.1 Stud Spacing by replacing "spaced no more than specified in Table R602.3(5) and Table R602.3.1" with "spaced no more than 16 inches on center". (Copy from Jefferson County)
33. 
Amend Table R602.3.1(1) Item #36 Description of Fastener by adding "or 1 1/8" screws, pan head or button head" and Item #37 Description of Fastener by adding "or 1 ¼" screws, pan head or button head". (Copy from Jefferson County)
34. 
Amend Table R602.3(3) by replacing the number "24" under maximum stud spacing with "16". (Copy from Jefferson County)
35. 
Delete Subsection R602.5 Interior non-bearing walls.
36. 
Delete Subsection R612.2 Window sills.
37. 
Delete Subsection R612.3 Window fall prevention devices.
38. 
Delete Subsection R612.4 Window opening limiting devices.
39. 
Delete Subsection R612.4.1 General requirements.
40. 
Delete Subsection R612.4.2 Operation for emergency escape.
41. 
Amend Subsection R702.1 General adding: "The warm side of all exterior stud framed walls except garages shall be drywalled and fire taped." as the first sentence.
42. 
Amend Subsection R905.2.8.2 Valleys Item #3 by replacing "one ply of smooth roll roofing complying with ASTM D 6380 and at least 36 inches wide (914 mm)" with "two ply of 15 lb. felt complying with ASTM D226 Type I, ASTM D 4869 Type I, or ASTM D 6757".
43. 
Amend Subsection N1102.2.3 Access hatches and doors by adding "Access doors from conditioned spaces to unconditioned spaces shall be insulated to a level equivalent to the insulation of the surrounding surfaces." as the first sentence.
44. 
Amend Subsection N1102.4.2 Air sealing and insulation by adding the words "Where required by Code Official the" to the beginning of the first sentence.
45. 
Delete Section N1102.4.3 Fireplaces.
46. 
Amend Subsection N1103.1.1 Programmable thermostat by deleting the last sentence of the paragraph.
47. 
Amend Subsection N1103.2.1 Insulation to read: "Supply ducts, in unconditioned spaces, shall be insulated to a minimum of R-4."
48. 
Amend Subsection N1103.2.2 Sealing by deleting #1 and #2, delete the last sentence "Duct tightness shall be verified by either of the following" and replace "Exception" with "Duct sealing and tightness test is not required if the air handler and most ducts are located within conditioned space."
49. 
Amend Subsection M1305.1.4.1 Ground clearance by replacing 2 inches (50.8 mm) with 3 inches (76 mm).
50. 
Amend Subsection M1411.6 Locking access port caps to read "Refrigerant circuit access ports located outdoors shall be fitted with non-locking or locking type tamper-resistant caps."
51. 
Amend Table M1601.4.1 Joints and seams by adding "Joints of duct systems shall be made substantially airtight in an unconditioned area by means of tapes, mastics, liquid sealants, gasketing or other approved closure systems." as the first sentence.
52. 
Add Subsection M1602.1.1 Bedrooms: Every bedroom shall have a return air system.
53. 
Amend Subsection G2408.4 (305.7) Clearances from grade to read "Equipment and appliances supported from the ground shall be level and firmly supported on a concrete slab or other approved material extending not less than 2 inches (50.8 mm) above the adjoining grade. Such support shall be in accordance with the manufacturer's installation instructions. Appliances suspended from the floor shall have a clearance of not less than 6 inches (152 mm) from the adjoining grade."
54. 
Delete Subsection P2503.6 Shower liner test.
55. 
Amend Subsection P2603.6.1 Sewer depth by inserting the numbers 18" and 30" respectively.
56. 
Add Subsection P2903.4.3 "Expansion Tanks: Any system with a new or a replacement water heating apparatus shall be provided with an approved, listed and adequately sized thermal expansion device (expansion tank) installed within ten (10) feet of and on the cold water supply to the water heater. The tank may be installed in a vertical up, vertical down, or horizontal position in accordance with the manufacturer's recommendation.
Exception:
1) 
Listed non-storage instantaneous heaters having an inside diameter of not more than three (3") inches
2) 
Water heaters, 30 gallons or less, installed under counter or in confined spaces in multi-family units, may use adequately sized mechanical water hammer arrestors to provide for thermal expansion with the approval of the authority having jurisdiction or his/her representative.
3) 
One- and two-family residences served by private well.
57. 
Delete Subsection P2904.1.1 Required sprinkler locations.
58. 
Amend Table P2905.4 Water Service Pipe by deleting "Type M and WM".
59. 
Amend Subsection P3102.3 Size to read "Stack required: Every building in which plumbing is installed shall have at least one stack the size of which is not less than seventy-five percent (75%) of the required size of the building drain. Such stack shall run undiminished in size."
60. 
Amend Subsection P3103.1 Roof Extension by replacing 6 inches (152 mm) with 12 inches (304 mm).
61. 
Amend Subsection P3103.2 Frost Closure by replacing 3 inches (76 mm) with 2 inches (50.8 mm).
62. 
Delete Chapters 34 — 43.
63. 
Adopt Appendix G, Swimming Pools, Spas, and Hot Tubs.
[Ord. No. 3718 §1, 1-22-2007; Ord. No. 3887 §1, 5-16-2011]
The International Mechanical Code is further amended and changed in the following respects:
CHAPTER 1 (OF INTERNATIONAL MECHANICAL CODE)
The following Sections of the International Mechanical Code, 2009 Edition, are revised as follows:
1. 
Amend Section 101.1 by inserting "City of De Soto, Missouri".
2. 
Amend Section 103.2 by replacing the entire Section with: "The Building Official, under the Code, shall be the City Manager or the duly authorized representative of the City Manager."
3. 
Amend Section 106.3.1 Construction Documents by deleting "when required by state law".
4. 
Amend Section 106.5.2 by inserting "$40.00".
5. 
Amend Section 106.5.3 #2 to read: "Fifty percent (50%)" and deleting #3.
6. 
Amend Section 108.4 Violations penalties to read: See "Violation penalties" as provided in Section 500.020 of this ordinance.
7. 
Amend Section 109. Means of Appeal to read: See "Means of Appeal" as provided in Section 500.020 of this ordinance.
8. 
Amend Section 301.7 Electrical by adding "2005 National Electrical Code".
[Ord. No. 3718 §1, 1-22-2007; Ord. No. 3887 §1, 5-16-2011]
The International Plumbing Code is further amended and changed in the following respects:
CHAPTER 1 (OF INTERNATIONAL PLUMBING CODE)
The following Sections of the International Plumbing Code, 2009 Edition, are revised as follows:
1. 
Amend Section 101.1 by inserting "City of De Soto, Missouri".
2. 
Amend Section 103.2 by replacing the entire Section with: "The Building Official, under the Code, shall be the City Manager or the duly authorized representative of the City Manager."
3. 
Amend Section 106.3.1 Construction Documents by deleting "when required by state law".
4. 
Amend Section 106.6.3 #2 to read "Fifty percent (50%)" and deleting #3.
5. 
Amend Section 109. Means of Appeal. See "Means of Appeal" as provided in Section 500.020 of this ordinance.
6. 
Amend Section 305.6.1 by inserting "Eighteen inches (18") and T.B.A".
7. 
Amend Section 406 Automatic Clothes Washer Subsection 406.3 by replacing "three inches" with "two inches (2")" and deleting "or an approved trench drain".
8. 
Add Subsection 412.3.1 Floor Drain: A minimum of one floor drain shall be required for all residential structures with basements.
9. 
Amend Subsection 417.3 Shower waste outlet by replacing "1½ inch" with "two inches (2")".
10. 
Amend Subsection 604.9.1 to read: "Air chambers, a minimum of sixteen inches (16") long may be installed in lieu of water hammer arrestors."
11. 
Amend Section 606.2 "Item #1" to read: "On the fixture supply to each fixture in one- and two-family and multi-family residential occupancies, and other than in individual guest rooms that are provided with unit shutoff valves in hotels, motels, boarding houses, and similar occupancies."
12. 
Add Subsection 703.6 "Minimum size building sewers" to read: "The gravity building sewer shall not be less than four inches (4") in size."
13. 
Amend Section 705.8.2 by deleting the word "purple" in this Section and anywhere referenced when associated with the word "primer" where it appears in the 2009 International Plumbing Code.
14. 
Amend Section 710 Drainage Systems Sizing Table 710.1(1) Building Drains and Sewers by adding Footnote B "The minimum size of the main building drain shall be four inches (4")." and by adding Footnote C: "The maximum developed length of underground two inch (2") diameter pipe shall be twenty feet (20')".
15. 
Amend Section 916.1 Vent Pipe Sizing by replacing "one-half" with "75%".
16. 
Amend Section 904.1 by inserting twelve inches (12").
17. 
Amend Subsection 904.2 Frost Closure by replacing "3" inches (76 mm) with "two inches (50.8 mm)".
[Ord. No. 3718 §1, 1-22-2007; Ord. No. 3887 §1, 5-16-2011]
The International Energy Conservation Code is further amended and changed in the following respects:
CHAPTER 1 (OF INTERNATIONAL ENERGY CODE)
The following Sections of the International Energy Code, 2009 Edition, are revised as follows:
1. 
Amend Section 101.1 by inserting "City of De Soto, Missouri".
[Ord. No. 3718 §1, 1-22-2007; Ord. No. 3887 §1, 5-16-2011]
The International Fuel Conservation Code is further amended and changed in the following respects:
CHAPTER 1 (OF INTERNATIONAL FUEL CODE)
The following Sections of the International Fuel Gas Code, 2009 Edition, are revised as follows:
1. 
Amend Section 101.1 by inserting "City of De Soto, Missouri".
[Ord. No. 3718 §1, 1-22-2007; Ord. No. 3887 §1, 5-16-2011]
The International Urban-Wildland Interface Code is further amended and changed in the following respects:
CHAPTER 1 (OF INTERNATIONAL URBAN-WILDLAND INTERFACE CODE)
The following Sections of the International Urban-Wildland Interface Code, 2009 Edition, are revised as follows:
1. 
Section 101.1 by inserting "City of De Soto, Missouri".
[Ord. No. 3718 §1, 1-22-2007]
A. 
Any new construction or major structural renovation begun after January 1, 1991, all buildings for which leases are executed by political subdivision of the State after January 1, 1994 and all buildings for which leases are executed by the State or any institution of higher education after January 1, 1994 shall comply with the standards for seismic design and construction of the Building Officials and Code Administrators Code or of the Uniform Building Code.
B. 
This Section shall not apply to any building owned by the State, any institution of higher education, any political subdivision upon which construction was begun or finished before December 17, 1990, any private structure with less than ten thousand (10,000) square feet in total area or any single-family or duplex residence.
C. 
As used in this Section, the term "major structural renovation" means any reconstruction, rehabilitation, addition or other improvement of an existing structure, the cost of which equals or exceeds fifty percent (50%) of the market value of the structure before the start of construction of the major structural renovation.