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SB 957
Missouri Senate•In Senate Committee
Summary
SB 957, the Establishes the Missouri Statewide Mechanical Contractors Licensing Act, was introduced in the Senate on Dec 1, 2025 by Sen. Doug Beck (D). It was referred to Emerging Issues and Professional Registration, and last saw action on Jan 8, 2026: Second Read and Referred S Emerging Issues and Professional Registration Committee.
Record
Text
SB 957 has no co-sponsors and has not gone to a roll call.
sb957/introduced.txtSECOND REGULAR SESSIONSENATE BILL NO. 957103RD GENERAL ASSEMBLYINTRODUCED BY SENATOR BECK.4640S.01I KRISTINA MARTIN, SecretaryAN ACTTo amend chapter 324, RSMo, by adding thereto nine new sections relating to statewidemechanical contractor licenses, with penalty provisions.Be it enacted by the General Assembly of the State of Missouri, as follows:1Section A. Chapter 324, RSMo, is amended by adding thereto2 nine new sections, to be known as sections 324.950, 324.953,3 324.956, 324.959, 324.962, 324.965, 324.968, 324.971, and4 324.974, to read as follows:1324.950. 1. The provisions of sections 324.950 to2 324.974 shall be known and may be cited as the "Missouri3 Statewide Mechanical Contractor Licensing Act" and shall not4 be affected by the provisions of section 324.009. The5 provisions of sections 324.950 to 324.974 shall not be6 construed to affect the provisions of chapter 341.72. As used in sections 324.950 to 324.974, unless the8 context clearly indicates otherwise, the following terms9 shall mean:10(1) "Apprentice", a person who holds a valid statewide11 mechanical apprentice license to perform mechanical work12 for, and under the direct supervision of, a journeyman;13(2) "Contractor", a person who holds a valid statewide14 mechanical contractor license and who is employed by a15 corporation, firm, institution, organization, or company toSB 957 216 perform mechanical work and directly supervise the17 performance of mechanical work by journeymen;18(3) "Division", the division of professional19 registration within the department of commerce and insurance;20(4) "Journeyman", a person who holds a valid statewide21 mechanical journeyman license to perform mechanical work22 for, and under the supervision of and inspection of, a23 contractor, and to supervise and inspect the mechanical work24 of an apprentice;25(5) "Local license", a license issued by a political26 subdivision and valid only in that political subdivision27 that is required to bid, accept, or perform mechanical work;28(6) "Mechanical work", work per the International Code29 Council, International Association of Plumbing and30 Mechanical Officials, 30 CSR 20, or the National Fire31 Protection Association (NFPA) 99.32(a) The term "mechanical work" shall include the33 design, installation, maintenance, construction, alteration,34 repair, and inspection of any:35a. HVAC system and associated appurtenances;36b. HVAC duct system and associated appurtenances;37c. Exhaust systems and associated appurtenances;38d. Combustion air or make-up air and associated39 appurtenances;40e. Chimneys and vents and associated appurtenances,41 excluding those regulated by local ordinances as such42 existed on April 18, 2023;43f. Hydronic piping systems and associated44 appurtenances that are part of an HVAC system;45g. Boilers, water heaters that are one hundred twenty46 gallons and above, or two hundred thousand British thermal47 units (BTUs) and above, and pressure vessels and associatedSB 957 348 appurtenances, excluding those covered by a nationally49 standardized plumbing code, those regulated by local50 ordinances as such existed on April 18, 2023, or those used51 for potable water systems;52h. Process piping systems and associated appurtenances;53i. Fuel gas distribution piping and associated54 appurtenances, excluding those regulated by local ordinances55 as such existed on April 18, 2023;56j. Fuel oil-fired and solid fuel appliances and57 associated appurtenances, excluding those covered by a58 nationally standardized plumbing code or local ordinances59 promulgated by a political subdivision of this state as such60 ordinances existed on April 18, 2023;61k. Fuel oil piping and storage vessels and associated62 appurtenances;63l. Fuel oil-fired and solid fuel appliance venting64 systems and associated appurtenances;65m. Equipment and appliances intended to utilize solar66 energy for space heating or cooling together with associated67 appurtenances;68n. Process heating and associated appurtenances;69o. Refrigeration systems, including all equipment and70 components thereof and associated appurtenances;71p. Nonmedical air, nonmedical oxygen, and nonmedical72 vacuum piping for mechanical equipment and associated73 appurtenances, excluding work covered by a nationally74 standardized plumbing code;75q. Liquefied petroleum gas distribution piping and76 associated appurtenances, excluding work covered by a77 nationally standardized liquefied petroleum gas code,78 national fuel gas code, and nationally standardized plumbingSB 957 479 codes, or local ordinances as such ordinances existed on80 April 18, 2023;81r. Biogas, biodiesel, hydrogen processing systems, and82 ethanol distribution and associated appurtenances;83s. Chillers, cooling towers, and associated support84 steel and appurtenances for cooling towers;85t. Petroleum piping and venting together with86 associated equipment and associated appurtenances, pumps,87 and tanks governed by NFPA 30 and 30a;88u. All fuel and petroleum pipelines, piping, and89 associated pumping stations with associated equipment and90 appurtenances; and91v. All associated equipment and facilities related to92 subparagraphs a. to u. of this paragraph.93(b) Notwithstanding the provisions of this subdivision94 to the contrary, the term "mechanical work" shall not95 include, and the provisions of sections 324.950 to 324.97496 shall not apply to, the design, installation, maintenance,97 construction, alteration, repair, or inspection of any:98a. Solid-fuel or gas-fueled hearth appliance,99 including, but not limited to, wood stoves and fireplaces,100 manufacturer-specified venting systems, fireplace chimneys,101 outdoor cooking appliances with manufacturer-specified102 venting systems, outdoor fireplaces, or outdoor fire pits;103b. Propane-related equipment for which certification104 is required by any regulation adopted under subdivision (3)105 of subsection 13 of section 323.025; or106c. Fire sprinkler or suppression systems and107 associated appurtenances.108 Additional certification may be required by the division for109 a particular scope of mechanical work;SB 957 5110(7) "Residential work", service-related and111 replacement-related mechanical work in an existing domicile112 for or on behalf of the individual owners or renters113 occupying:114(a) Single-family houses;115(b) An individual dwelling unit in a duplex, triplex,116 or fourplex; or117(c) An individual dwelling unit in an apartment118 building containing five or more apartments.119 The term "residential work" shall not include new120 construction or work required for a building or structure as121 a whole that services more than one dwelling unit;122(8) "Statewide mechanical apprentice license", a valid123 license issued by the division to an apprentice to124 physically perform mechanical work under the direct125 supervision and inspection of a journeyman;126(9) "Statewide mechanical contractor license", a valid127 license issued by the division to a contractor to bid and128 accept mechanical work in any political subdivision129 regardless of local requirements to bid and accept130 mechanical work, to physically perform mechanical work, and131 to directly supervise and inspect the mechanical work of a132 journeyman;133(10) "Statewide mechanical journeyman license", a134 valid license issued by the division to a journeyman to135 physically perform mechanical work under the supervision and136 inspection of a contractor and to directly supervise and137 inspect the mechanical work of an apprentice.1324.953. 1. The division shall adopt, implement,2 rescind, amend, and administer such rules as may beSB 957 63 necessary to carry out the provisions of sections 324.950 to4 324.974, including, but not limited to, the following:5(1) Training, education, and experience requirements6 for licensure under sections 324.950 to 324.974;7(2) Application forms and fees;8(3) Professional education units for license renewal9 and approval of professional education programs;10(4) Renewal dates, notifications of renewal, and11 renewal applications and fees;12(5) Inactive licenses and reinstatement procedures; and13(6) Professional conduct and ethical standards of14 business practice for licensees.15 Any rule or portion of a rule, as that term is defined in16 section 536.010, that is created under the authority17 delegated in this section shall become effective only if it18 complies with and is subject to all of the provisions of19 chapter 536 and, if applicable, section 536.028. This20 section and chapter 536 are nonseverable and if any of the21 powers vested with the general assembly pursuant to chapter22 536 to review, to delay the effective date, or to disapprove23 and annul a rule are subsequently held unconstitutional,24 then the grant of rulemaking authority and any rule proposed25 or adopted after August 28, 2026, shall be invalid and void.262. For the purpose of sections 324.950 to 324.974, the27 division shall:28(1) Employ, within the limits of the appropriations29 for such purpose, employees as are necessary to carry out30 the provisions of sections 324.950 to 324.974;31(2) Exercise all administrative functions;SB 957 732(3) Establish all applicable fees, set at an amount33 that shall not substantially exceed the cost of34 administering sections 324.950 to 324.974;35(4) Deposit all fees collected by transmitting such36 funds to the department of revenue for deposit to the state37 treasury to the credit of the Missouri mechanical contractor38 licensing fund established under section 324.956;39(5) Enter into agreements with the boiler and pressure40 vessel safety unit within the division of fire safety of the41 department of public safety to investigate complaints42 against a licensee from persons who receive services from43 the licensee and for the submission of a report to the44 division of such investigation, provided that the division45 shall retain the authority to institute any enforcement46 action against a licensee as a result of an investigation47 under this subdivision. Nothing in this subdivision shall48 be construed to prevent the boiler and pressure vessel49 safety unit from reporting a violation of sections 324.95050 to 324.974 found during a routine inspection to the51 division; and52(6) Institute actions to enforce compliance with the53 provisions of sections 324.950 to 324.974.543. No new licensing activity assigned to the division55 under sections 324.950 to 324.974 shall become effective56 until the initial rules filed under this section have become57 effective.1324.956. There is hereby created in the state treasury2 the "Missouri Mechanical Contractor Licensing Fund", which3 shall consist of moneys collected under sections 324.950 to4 324.974. The state treasurer shall be custodian of the fund5 and may approve disbursements from the fund in accordance6 with sections 30.170 and 30.180. Upon appropriation, moneysSB 957 87 in the fund shall be used solely for the administration of8 sections 324.950 to 324.974. The provisions of section9 33.080 to the contrary notwithstanding, moneys in this fund10 shall not be transferred and placed to the credit of general11 revenue until the amount in the fund at the end of the12 biennium exceeds three times the amount of the appropriation13 from the fund for the preceding fiscal year. The amount, if14 any, in the fund that shall lapse is that amount in the fund15 that exceeds the appropriate multiple of the appropriations16 from the fund for the preceding fiscal year. The state17 treasurer shall invest moneys in the fund in the same manner18 as other funds are invested. Any interest and moneys earned19 on such investments shall be credited to the fund.1324.959. The provisions of sections 324.950 to 324.9742 shall not apply to mechanical work, including residential3 work, performed in any county with more than two hundred4 sixty thousand but fewer than three hundred thousand5 inhabitants, any county with more than fifty thousand but6 fewer than sixty thousand inhabitants and with a county seat7 with more than ten thousand but fewer than twelve thousand8 six hundred inhabitants, or any county with more than one9 hundred twenty thousand but fewer than one hundred fifty10 thousand inhabitants, or any political subdivision contained11 within such counties.1324.962. 1. The applicant for a statewide mechanical2 contractor license shall have:3(1) Completed the application form provided by the4 division and paid any applicable application fees;5(2) Provided proof of liability insurance in the6 amount of one million dollars and posted bond with each7 political subdivision in which he or she will perform work,8 as required by that political subdivision; andSB 957 99(3) Completed the educational, training, and10 experience requirements equal to or greater than that of a11 contractor's license, as such existed on April 18, 2023, in12 the mechanical code or ordinance of any county with more13 than one million inhabitants.142. The applicant for a statewide mechanical journeyman15 license shall have:16(1) Completed the application form provided by the17 division and paid any applicable application fees; and18(2) Completed the educational, training, and19 experience requirements equal to or greater than that of a20 journeyman license, as such existed on April 18, 2023, in21 the mechanical code or ordinance of any county with more22 than one million inhabitants.233. The applicant for a statewide mechanical apprentice24 license shall have:25(1) Completed the application form provided by the26 division and pay any applicable application fees; and27(2) Completed the educational, training, and28 experience requirements equal to or greater than that of an29 apprentice license, as such existed on April 18, 2023, in30 the mechanical code or ordinance of any county with more31 than one million inhabitants.1324.965. 1. Any corporation, firm, institution,2 organization, company, or representative thereof engaging in3 mechanical work in a political subdivision that requires a4 local license in order to perform such work shall:5(1) Have in its employ, at a supervisory level, at6 least one statewide mechanical contractor licensee, or an7 equivalent local licensee. A statewide mechanical8 contractor licensee shall represent only one firm, company,9 corporation, institution, or organization at one time;SB 957 1010(2) For purposes of performing residential work, have11 either a statewide mechanical contractor licensee or a12 statewide mechanical journeyman licensee to perform, direct,13 inspect, or supervise the work, or the equivalent local14 licensee; and15(3) For all other mechanical work, have at least one16 statewide mechanical journeyman licensee on site for every17 statewide mechanical apprentice licensee performing the18 work, or the equivalent local licensee.192. Any person performing mechanical work in a20 political subdivision that does not require the person to21 hold a local license, or any person who possesses such local22 license, shall not be required to obtain or possess a23 statewide license under sections 324.950 to 324.974 to24 perform mechanical work in such political subdivision.253. (1) Political subdivisions shall not be prohibited26 from establishing their own mechanical contractor,27 journeyman, or apprentice licenses, but shall recognize a28 statewide license in lieu of the equivalent local license29 for the purpose of performing mechanical work in such30 political subdivision. A statewide licensee under sections31 324.950 to 324.974 shall be deemed eligible to perform32 mechanical work and to obtain permits to perform such work33 from any political subdivision in this state commensurate34 with the corresponding local license.35(2) Nothing in sections 324.950 to 324.974 shall be36 construed to prohibit a political subdivision from enforcing37 any of the political subdivision's codes, ordinances, or38 laws; inspecting the work of licensees; or reporting39 suspected violations of sections 324.950 to 324.974 to the40 division for investigation of the licensee.SB 957 11414. (1) If a political subdivision does not recognize42 a statewide license in lieu of an equivalent local license43 for the purposes of performing mechanical work or obtaining44 permits to perform mechanical work within the political45 subdivision, then a statewide licensee may file a complaint46 with the division.47(2) The division shall perform an investigation into48 the complaint, and if the division finds that the political49 subdivision failed to recognize a statewide license in50 accordance with the provisions of this section, then the51 division shall notify the political subdivision that the52 political subdivision has violated the provisions of this53 section and has thirty days to comply with the law.54(3) If, after thirty days of notification by the55 division, the political subdivision continues to refuse or56 fail to recognize a statewide license, then the division57 shall notify the director of the department of revenue, who58 shall withhold any moneys that the noncompliant political59 subdivision would otherwise be entitled to from local sales60 tax, as defined in section 32.085, until the director has61 received notice from the division that the political62 subdivision is in compliance with this section.63(4) When the political subdivision becomes compliant64 with the provisions of this section, the division shall65 notify the director of the department of revenue who shall66 disburse all funds held under this subsection. Moneys held67 by the director of the department of revenue under this68 subsection shall not be deemed to be state funds and shall69 not be commingled with any funds of the state.1324.968. Licenses issued under sections 324.950 to2 324.974 shall expire on a renewal date established in rule3 by the division. The term of licensure shall be threeSB 957 124 years. The division shall mail a renewal notice prior to5 the renewal date. Professional education units needed for6 license renewal, as well as procedures involving inactive7 licenses and reinstatement of licenses, shall be equal to8 those in the mechanical code or ordinance, as such existed9 on April 18, 2023, of any county with more than one million10 inhabitants.1324.971. 1. The division may refuse to issue or renew2 or may suspend any license under sections 324.950 to 324.9743 for one or any combination of causes stated in subsection 34 of this section. The division shall notify the applicant in5 writing of the reasons for the refusal and shall advise the6 applicant of his or her right to file a complaint with the7 administrative hearing commission as provided by chapter 621.82. The division shall publish via electronic media and9 update on a weekly basis a list of valid statewide10 mechanical contractor licensees under sections 324.950 to11 324.974, a list of current enforcement actions against such12 licensees, and the procedures for filing grievances against13 any statewide mechanical contractor, mechanical journeyman,14 and mechanical apprentice licensees.153. The division may cause a complaint to be filed with16 the administrative hearing commission as provided by chapter17 621 against any licensee under sections 324.950 to 324.97418 or any person who has failed to renew or has surrendered his19 or her license for any one or any combination of the20 following causes:21(1) The final adjudication and finding of guilty, or22 the entering of a plea of guilty or nolo contendere, in a23 criminal prosecution under the laws of any state, of the24 United States, or of any country, for any offense reasonably25 related to the qualifications, duties, and responsibilitiesSB 957 1326 of a licensee under sections 324.950 to 324.974 for any27 offense an essential element of which is fraud, dishonesty,28 or an act of violence;29(2) Use of fraud, deception, misrepresentation, or30 bribery in securing any license issued under sections31 324.950 to 324.974 or in obtaining permission to take any32 examination given or required under sections 324.950 to33 324.974;34(3) Obtaining or attempting to obtain any fee, charge,35 tuition, or other compensation by fraud, deception, or36 misrepresentation;37(4) Incompetence, misconduct, gross negligence, fraud,38 misrepresentation, or dishonesty in the performance of the39 functions and duties of any profession licensed or regulated40 under sections 324.950 to 324.974;41(5) Violation of, or assisting or enabling any person42 to violate, any provision of sections 324.950 to 324.974 or43 any lawful rule adopted under sections 324.950 to 324.974;44(6) Impersonation of any person holding a license or45 allowing any person to use his or her license;46(7) Final adjudication of a person as incompetent by a47 court of competent jurisdiction;48(8) Assisting or enabling any person to practice, or49 offer to practice, any profession licensed or regulated50 under sections 324.950 to 324.974 who is not licensed and51 currently eligible to practice under sections 324.950 to52 324.974 or who does not possess an active equivalent local53 license if required by a political subdivision; or54(9) Issuance of a license based upon a material55 mistake of fact.564. After the filing of such complaint, the proceedings57 shall be conducted in accordance with the provisions ofSB 957 1458 chapter 621. Upon a finding by the administrative hearing59 commission that the grounds provided in subsection 3 of this60 section for disciplinary action are met, the division may,61 singly or in combination, censure or place the person named62 in the complaint on probation with such terms and conditions63 as the division deems appropriate for a period not to exceed64 five years, or may suspend, for a period not to exceed three65 years, or revoke the license.665. An individual whose license has been revoked shall67 wait at least one year from the date of revocation to apply68 for relicensure. Relicensure shall be at the discretion of69 the division after compliance with all requirements of70 sections 324.950 to 324.974 relative to the previous71 licensing of the applicant.1324.974. 1. Any person who knowingly violates any2 provision of sections 324.950 to 324.974 is guilty of a3 class B misdemeanor.42. Any officer or agent of a corporation or member or5 agent of a partnership or association who knowingly and6 personally participates in or is an accessory to any7 violation of sections 324.950 to 324.974 is guilty of a8 class B misdemeanor.93. The division may cause a complaint to be filed for10 any violation of sections 324.950 to 324.974 in any court of11 competent jurisdiction and perform such other acts as may be12 necessary to enforce the provisions of sections 324.950 to13 324.974.✓
Establishes the Missouri Statewide Mechanical Contractors Licensing Act
Sponsors
Sen. Doug Beck (D) sponsors SB 957 alone.
Committees
SB 957 went before 1 committee: Emerging Issues and Professional Registration.

History
SB 957 has taken 3 actions since Dec 1, 2025, the latest on Jan 8, 2026.
| Chamber | Action | |||
|---|---|---|---|---|
Jan 8, 2026 | Senate | Second Read and Referred S Emerging Issues and Professional Registration Committee | ||
Jan 7, 2026 | Senate | S First Read | ||
Dec 1, 2025 | Senate | Prefiled |
Votes
SB 957 has not gone to a roll call.
Source: senate.mo.gov · legiscan.com