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 Los Angeles County
 Code of Ordinances
 Title 29. MECHANICAL CODE

  Appendix 1. Legislative History for Ordinance 9544.

Latest version.

  • Ordinance 9544, the Mechanical Code for Los Angeles County, was originally adopted on March 14, 1968. Ordinance 9544 was kept up to date by later amendments until the entire Mechanical Code was repealed and replaced by Ordinance 95-0070. Major amendments to Ordinance 9544, each adopting the current edition of the Uniform Mechanical Code, are listed and briefly described in Table A below; amending ordinances are also listed.

    Table B covers the legislative history of the county's own Mechanical Code provisions before Ordinance 95-0070 was passed, and gives the specific legislative history for each section.

    Table C shows the correspondence between sections of the 1991 Uniform Mechanical Code and the 1994 Uniform Mechanical Code. The 1991 Uniform Mechanical Code was extensively revised and renumbered to create the 1994 Uniform Mechanical Code.

    Provisions of Ordinance 95-0070 and its amendments now comprise Title 29 of the Los Angeles County Code.

    Table A

    Ordinances
    9544 Adopts 1967 Edition of UMC, with Appendix, as Mechanical Code of the county; amended by 10206.
    10324 Adopts 1970 Edition of UMC, with Appendices A and C, by substituting Chs. 1—17, 19 and Appendices A and C for provisions adopted by Ordinance 9544; amended by 10519.
    11097 Adopts 1973 Edition of UMC, with Appendices A and C, by substituting Chs. 4—17, 19 and Appendices A and C in place of Chs. 4—17, 19 and Appendices A and C of Ordinance 9544; amended by 11242.
    11575 Adopts 1976 Edition of UMC, with Appendices A and C, by substituting Chs. 4—17, 19—20 and Appendices A and C in place of Chs. 4—17, 19 and Appendices A and C of Ordinance 9544; amended by 12269 (effective December 26, 1980).
    11684 Adopts with various changes, as non-mandatory design guide, 1976 Edition of Uniform Solar Energy Code (including all appendices) as Appendix D to UMC, and adds § 511 to Ordinance 9544 (effective April 30, 1978); repealed by Ordinance 84-0163 § 32, 1984.

     

    For later amendments, see the Ordinance List and Disposition Table in Volume 8 of this code, and legislative history notes following individual sections in Title 29.

    Table B

    Ord. 9544 Amending Ordinances
    Chapter 1 Amended by 10324 § 2 (part), 1971.
    100 Added by 9544 § 1, 1968; amended by 12269 § 1, 1980; 84-0163 § 1, 1984; 87-0179 § 1, 1987; 90-0047 § 1, 1990; 92-0116 § 1, 1992.
    101 Amended by 10324 § 2 (part), 1971.
    102 Amended by 10324 § 2 (part), 1971; 90-0047 § 2, 1990.
    103 Amended by 10324 § 2 (part), 1971.
    104 Amended by 10324 § 2 (part), 1971; 90-0047 § 3, 1990.
    105 Amended by 10324 § 2 (part), 1971.
    106 Amended by 10324 § 2 (part), 1971; 92-0116 § 2, 1992.
    107 Amended by 10324 § 2 (part), 1971; 91-0089 § 1, 1991.
    108 Amended by 10324 § 2 (part), 1971; 11097 § 3, 1975.
    109 Amended by 10324 § 2 (part), 1971.
    Chapter 2 Amended by 10324 § 2 (part), 1971.
    201 Amended by 10324 § 2 (part), 1971; 87-0179 § 2, 1987.
    Chapter 3 Adopted by 10324 § 1, 1971.
    301 Amended by 10324 § 3, 1971; 11242 § 1, 1975; 82-0119 § 1, 1982.
    302 Amended by 10324 § 4, 1971; 11097 §§ 4 and 5, 1975; 11269 § 1, 1980; 82-0119 § 2, 1982; 89-0059 § 1, 1989; 90-0047 § 4, 1990; 90-0129 § 1, 1990; 91-0089 §§ 3, 4, 1991.
    303 Amended by 10324 § 5, 1971; 11097 § 6, 1975; 82-0071 § 1, 1982; 91-0089 §§ 5, 6, 1991; 92-0116 § 3, 1992.
    304 Amended by 10324 § 6, 1971; 10519 § 1, 1972; 11097 §§ 8—12, 1975; 11242 § 2, 1975; 11575 § 2, 1977; 11269 § 2, 1980; 82-0119 § 3, 1982; 89-0059 § 2, 1989; 90-0129 § 2, 1990; 91-0089 § 7, 1991.
    305 Amended by 10324 § 8, 1971.
    306 In 10324 § 1, 1971.
    307 Added by 91-0089 § 8, 1991.
    Chapter 4
    406 Amended by 84-0163 § 3 (part), 1984.
    410 Amended by 84-0163 § 3 (part), 1984.
    417 Amended by 90-0047 § 5, 1990; 92-0116 § 4, 1992.
    423 Amended by 84-0163 § 3 (part), 1984; 87-0179 § 4, 1987; 90-0047 § 6, 1990; 92-0116 § 5, 1992.
    Chapter 5
    Tables 5-D-1, 5-D-2
    503(c)(4)
    509
    Chapter 6
    604(a)(1) Amended by 92-0116 § 6, 1992.
    Chapter 7
    704 Amended by 92-0116 § 7, 1992.
    704.5 Amended by 90-0047 § 9, 1990.
    Chapter 11
    1101 Amended by 84-0163 § 20 (part), 1984.
    Chapter 15
    1518(a) Amended by 84-0163 § 24 (part), 1984.
    1520 Deleted by 84-0163 § 24 (part), 1984.
    Table 15-C Deleted by 84-0163 § 24 (part), 1984.
    Table 15-D Deleted by 87-0179 § 8, 1987.
    Chapter 20
    2003(a) Amended by 87-0179 § 9, 1987.
    2003(g)4 Amended by 90-0047 § 10, 1990.
    2003(h) Amended by 84-0163 § 29 (part), 1984.
    2003(j) Added by 84-0163 § 29 (part), 1984.

     

    Table C

    This table shows changes to Sections of Title 29 made by Ordinance 95-0070 to incorporate provisions of the Los Angeles County Mechanical Code as they appeared prior to the reformatting ordinance (Ordinance 95-0070).

    Use this table to find the location of a particular section of Ordinance 9544 in Title 29. Consult Tables A and B and the history notes following each section for a complete legislative history. This table will show where sections of the County's own Mechanical Code and its amendments to the Uniform Mechanical Code were located prior to the adoption of the reformatting ordinance (Ordinance 95-0070), but does not reflect repealed sections.

    TITLE 29 SECTION REASSIGNMENTS

    91 SECTION 94 SECTION SUBJECT
    Chapter 1 Chapter 1 ADMINISTRATION
    Part 1 Part 1 General Provisions
    100 100 UMC Adoption by Reference
    101 101 Title
    102 102 Purpose and Intent
    103 103 Scope
    104 104 Chief Mechanical Inspector
    105 105 Terms
    106 106 Existing Equipment
    107 107 Alternate Materials and Methods of Construction
    108 108 Violations and Penalty
    109 109 Board of Appeals
    Part II Part II Organization and Enforcement
    201 110 Duties of the Mechanical Inspector
    Part III Part III Permits and Inspection
    301 111 Permits Required
    302 112 Plans Required and Plan Check Fees
    303 113 Validity and Length of Permit
    304 114 Permit Fees
    305 115 Inspection
    306 116 Request for Inspection
    307 117 Annual Review of Fees
    Chapter 4 Chapter 2 DEFINITIONS AND ABBREVIATIONS
    406-D 206-D Dwelling
    410-H 210-H Humanly Occupied Space
    417-O 217-O Occupancy
    423-U 223-U UMC
    Chapter 5 Chapter 3 EQUIPMENT—GENERAL
    503(c)(4) 303.3(4) Gas-burning Appliances
    509 309.1 Delete
    Table 5-D-1 3-D-1 Delete
    Table 5-D-2 3-D-2 Delete
    Chapter 6 Chapter 7 COMBUSTION AIR
    604(a)1 704.1(1) General
    Chapter 7 Chapter 3 WARM AIR HEATING SYSTEMS
    704(5) 315.1(5) Prohibited Installations
    704(8) 315.1(8) Prohibited Installations
    Chapter 11 Chapter 5 VENTILATION SYSTEMS AND PRODUCT CONVEYING SYSTEMS
    1101 501 Scope
    Chapter 15 Chapter 11 MECHANICAL REFRIGERATING EQUIPMENT
    1518(a) Removed from 1994 UMC
    1520 1122 Delete
    Table 15-C Removed from 1994 UMC
    Table 15-D Table 11-D Delete
    Chapter 20 Chapter 5 COMMERCIAL HOODS AND KITCHEN VENTILATION
    2003(a) 508.1 Where Required
    2003(g)4 508.7.4 Capacity of Hoods
    2003(h) 508.8 Capacity for Non-canopy Hoods