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Régie du bâtiment du Québec

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Searching for a contractor or a licence number: consult the Licence holders' repertory.

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This content in English is intended for individuals covered by the exceptions to the Charter of the French language and its regulations.

Specialized contractor

Amendments to the subclasses concerning heating, ventilation and refrigeration systems

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The Regulation respecting the professional qualification of contractors and owner-builders is amended in order to adapt certain licence subclasses for work on apparatus that is part of heating, ventilation and refrigeration systems. These amendments will come into force on January 16, 2017. These changes focus on the obligation to hold all the appropriate subclasses to work on those apparatus. Contractors who already hold the appropriate subclasses don’t have to qualify again. More precisely, the amendments will allow
  • contractors – heating systems, also members of the Corporation des maîtres mécaniciens en tuyauterie du Québec (CMMTQ), to carry out any work on a heating system, including work that is not reserved exclusively for them, such as air distribution systems or control systems
  • contractors – ventilation to carry out work relating to air circulation or distribution systems, such as the installation of apparatus used to heat a building
  • contractors – heating, ventilation or refrigeration to carry out work relating to heating, ventilation and refrigeration apparatus, as long as they have the required qualifications.
To see the different scenarios showing how the work is shared between the subcategories affected by the regulatory amendments, consult the document Description of specialized subclasses concerning heating, ventilation and refrigeration [Fr]. – PDF (413 KB)

Subclasses affected by the changes

In order to see what the regulatory amendments are, the modifications are highlighted in yellow in the new regulation. Click on the desired subclass.

15.1 Contractor – Pulsed air heating systems

Former regulation

15.1 Contractor – Warm air heating systems

This subclass authorizes construction work reserved exclusively for master pipe-mechanics under the Master Pipe-Mechanics Act (R.S.Q., c. M-4) relating to warm air heating systems. It also authorizes, even if it is not reserved exclusively for master pipe-mechanics, construction work relating to propane gas burners part of warm air heating systems and construction work in subclass 15.1.1. Lastly, it authorizes related construction work.

New regulation

The regulatory amendments are highlighted.

15.1 Contractor – beginning of the modification Pulsed air end of the modification heating systems

This subclass authorizes construction work reserved exclusively for master pipe-mechanics under the Master Pipe-Mechanics Act (R.S.Q., c. M-4) relating to beginning of the modification pulsed air end of the modification heating systems. beginning of the modification It also authorizes construction work that is not already authorized by the first paragraph and relating to pulsed air heating systems, particularly those relating to propane gas burners and those included in subclass 15.1.1. end of the modificationbeginning of the modification In addition, this subclass authorizes construction work relating to pulsed air heating and air conditioning systems. However, work relating to heating and air conditioning devices that are part of such systems may not be carried out unless the contractor also holds the appropriate subclass 15.9 or 15.10. end of the modification Lastly, it authorizes related construction work.

Should you modify your licence?

In addition to subclass 15.1, a contractor who wishes to carry out construction work relating to heating and air conditioning apparatus that are part of pulsed air heating systems must hold the subclass 15.9 or 15.10. Therefore, if you intend to carry out this type of work, and you’re not holding the subclass 15.9 or 15.10, you must get the new qualifications required before January 16, 2017. You may:
  • determine the appropriate subclass to obtain depending on the work you’re planning, and look into the definitions of 15.9 and 15.10
  • learn how to add a new subclass to your licence by consulting the page Adding a class or a subclass, in the Licence and examinations section.

15.1.1 Contractor – Pulsed air heating systems for certain work that is not reserved exclusively for master pipe-mechanics

Former regulation

15.1.1 Contractor – Warm air heating systems for certain work that is not reserved exclusively for master pipe-mechanics

This subclass authorizes maintenance work relating to warm air heating systems, including propane gas burners that are part of them. It also authorizes construction work relating to heating systems referred to in the fi rst paragraph that is carried out in the territory of a local municipality with fewer than 5,000 inhabitants, except if there is a public sewer system, or in an unorganized territory. Lastly, it authorizes related construction work.

New regulation

The regulatory amendments are highlighted.

15.1.1 Contractor – beginning of the modification Pulsed air end of the modification heating systems for certain work that is not reserved exclusively for master pipe-mechanics

This subclass authorizes maintenance work relating to beginning of the modification pulsed air end of the modification heating systems, including propane gas burners that are part of them. It also authorizes construction work relating to heating systems referred to in the first paragraph that is carried out in the territory of a local municipality with fewer than 5,000 inhabitants, except if there is a public sewer system, or in an unorganized territory. beginning of the modification In addition, this subclass authorizes construction work relating to pulsed air heating and air conditioning systems that is carried out in the territories referred to in the second paragraph. However, work relating to heating and air conditioning devices that are part of such systems may not be carried out unless the contractor also holds the appropriate subclass 15.9 or 15.10. end of the modification Lastly, it authorizes related construction work.

Should you modify your licence?

In addition to subclass 15.1.1, a contractor must hold the subclass 15.9 or 15.10 if he wishes to carry out construction work relating to heating and air conditioning apparatus that are part of a pulsed air heating system on a local municipality’s territory with a population fewer than 5,000 inhabitant (unless there’s a common sewer), or on an unorganized territory. Therefore, if you intend to carry out this type of work, and you’re not holding the subclass 15.9 or 15.10, you must get the new qualifications required before January 16, 2017. You may:
  • determine the appropriate subclass to obtain depending on the work you’re planning, and look into the definitions of 15.9 and 15.10
  • learn how to add a new subclass to your licence by consulting the page Adding a class or a subclass, in the Licence and examinations section.

15.4 Contractor – Hydronic heating systems

Former regulation

15.4 Contractor – Hot water and steam heating systems

This subclass authorizes construction work reserved exclusively for master pipemechanics under the Master Pipe-Mechanics Act relating to hot water and steam heating systems. It also authorizes, even if it is not reserved exclusively for master pipe-mechanics, construction work relating to propane burners that are part of hot water or steam heating systems and construction work in subclass 15.4.1. Lastly, it authorizes related construction work.

New regulation

The regulatory amendments are highlighted.

15.4 Contractor – beginning of the modification Hydronic end of the modification heating systems

This subclass authorizes construction work reserved exclusively for master pipemechanics under the Master Pipe-Mechanics Act relating to beginning of the modification hydronic end of the modification heating systems. beginning of the modification It also authorizes construction work that is not already authorized by the first paragraph and relating to hydronic heating systems, particularly those relating to propane gas burners and those included in subclass 15.4.1. end of the modificationbeginning of the modification In addition, this subclass authorizes construction work relating to hydronic heating and air conditioning systems. However, work relating to heating and air conditioning devices that are part of such systems may not be carried out unless the contractor also holds the appropriate subclass 15.9 or 15.10. end of the modification Lastly, it authorizes related construction work.

Should you modify your licence?

In addition to subclass 15.4, a contractor who wishes to carry out construction work relating to heating and air conditioning apparatus that are part of a hydronic heating system must hold the subclass 15.9 or 15.10. Therefore, if you intend to carry out this type of work, and you’re not holding the subclass 15.9 or 15.10, you must get the new qualifications required before January 16, 2017. You may:
  • determine the appropriate subclass to obtain depending on the work you’re planning, and look into the definitions of 15.9 and 15.10
  • learn how to add a new subclass to your licence by consulting the page Adding a class or a subclass, in the Licence and examinations section.

15.4.1 Contractor – Hydronic heating systems for certain work that is not reserved exclusively for master pipe-mechanics

Former regulation

15.4.1 Contractor – Hot water and steam heating systems for certain work that is not reserved exclusively for master pipe-mechanics

This subclass authorizes maintenance work relating to hot water and steam heating systems, including propane burners that are part of the systems. It also authorizes construction work relating to heating systems referred to in the first paragraph and that is carried out in the territory of a local municipality with fewer than 5,000 inhabitants, except if there is a public sewer system, or in an unorganized territory. Lastly, it authorizes related construction work.

New regulation

The regulatory amendments are highlighted.

15.4.1 Contractor – beginning of the modification Hydronic end of the modification heating systems for certain work that is not reserved exclusively for master pipe-mechanics

This subclass authorizes maintenance work relating to beginning of the modification hydronic end of the modification heating systems, including propane burners that are part of the systems. It also authorizes construction work relating to heating systems referred to in the first paragraph and that is carried out in the territory of a local municipality with fewer than 5,000 inhabitants, except if there is a public sewer system, or in an unorganized territory. beginning of the modification In addition, this subclass authorizes construction work relating to hydronic heating and air conditioning systems carried out in the territories referred to in the second paragraph. However, work relating to heating and air conditioning devices that are part of such systems may not be carried out unless the contractor also holds the appropriate subclass 15.9 or 15.10. end of the modification Lastly, it authorizes related construction work.

Should you modify your licence?

In addition to subclass 15.4.1, a contractor must hold the subclass 15.9 or 15.10 if he wishes to carry out construction work relating to heating and air conditioning apparatus that are part of hydronic heating systems on a local municipality’s territory with a population fewer than 5,000 inhabitant (unless there’s a common sewer), or on an unorganized territory. Therefore, if you intend to carry out this type of work, and you’re not holding subclasses 15.9 or 15.10, you must get the new qualifications required before January 16, 2017. You may:
  • determine the appropriate subclass to obtain depending on the work you’re planning, and look into the definitions of 15.9 and 15.10
  • learn how to add a new subclass to your licence by consulting the page Adding a class or a subclass, in the Licence and examinations section.

15.7 Contractor – Residential ventilation

Former regulation

15.7 Contractor – Residential ventilation

This subclass authorizes construction work that is not reserved exclusively for master pipe-mechanics relating to air circulation or distribution systems related to ventilation, exhaust, air compensation and air conditioning of single family dwellings, duplexes or town houses and private portions of multi-family dwellings held in divided co-ownership. It also authorizes construction work relating to the heating duct systems in the dwellings referred to in the first paragraph. Lastly, it authorizes similar or related construction work.

New regulation

The regulatory amendments are highlighted.

15.7 Contractor – Residential ventilation

This subclass authorizes construction work that is not reserved exclusively for master pipe-mechanics relating to air circulation or distribution systems related to ventilation, exhaust, air compensation and air conditioning of single family dwellings, duplexes or town houses and private portions of multi-family dwellings held in divided co-ownership. beginning of the modification It also authorizes, for buildings referred to in the first paragraph, construction work relating to the heating duct systems and the installation of the heating devices of a pulsed air heating system as well as construction work relating to the heating duct systems of a pulsed air heating and air conditioning system. end of the modificationbeginning of the modification In addition, this subclass authorizes, for the same buildings, construction work relating to the heating and air conditioning devices of a pulsed air system provided that the contractor also holds the appropriate subclass 15.9 or 15.10. end of the modification Lastly, it authorizes similar or related construction work.

Should you modify your licence?

In addition to subclass 15.7, a contractor must hold the subclass 15.9 or 15.10 if he wishes to carry out construction work relating to apparatus used to heat and air-condition a pulsed air heating system for the following buildings: detached, semi-detached, and row-type single-family dwellings, and a multi-family building’s private portion held in divided co-ownership. Therefore, if you intend to carry out this type of work, and you’re not holding the subclass 15.9 or 15.10, you must get the new qualifications required before January 16, 2017. You may:
  • determine the appropriate subclass to obtain depending on the work you’re planning, and look into the definitions of 15.9 and 15.10
  • learn how to add a new subclass to your licence by consulting the page Adding a class or a subclass, in the Licence and examinations section.

15.8 Contractor – Ventilation

Former regulation

15.8 Contractor – Ventilation

This subclass authorizes construction work that is not reserved exclusively for master pipe-mechanics relating to air circulation or distribution systems related to ventilation, exhaust, air compensation and air conditioning. It also authorizes construction work relating to the heating duct systems and construction work in subclass 15.7. Lastly, it authorizes similar or related construction work.

New regulation

The regulatory amendments are highlighted.

15.8 Contractor – Ventilation

This subclass authorizes construction work that is not reserved exclusively for master pipe-mechanics relating to air circulation or distribution systems related to ventilation, exhaust, air compensation and air conditioning. beginning of the modification It also authorizes construction work relating to the heating duct systems and the installation of the heating devices of a pulsed air heating system as well as construction work relating to the heating duct systems of a pulsed air heating and air conditioning system. end of the modificationbeginning of the modification In addition, that subclass authorizes construction work relating to the heating and air conditioning devices of a pulsed air system provided that the contractor also holds the appropriate subclass 15.9 or 15.10. end of the modification Lastly, it authorizes similar or related construction work.

Should you modify your licence?

In addition to subclass 15.8, a contractor who wishes to carry out construction work relating to apparatus used to heat and air-condition a pulsed air heating system must hold the subclass 15.9 or 15.10. Therefore, if you intend to carry out this type of work, and you’re not holding the subclass 15.9 or 15.10, you must get the new qualifications required before January 16, 2017. You may:
  • determine the appropriate subclass to obtain depending on the work you’re planning, and look into the definitions of 15.9 and 15.10
  • learn how to add a new subclass to your licence by consulting the page Adding a class or a subclass, in the Licence and examinations section.

15.9 Contractor – Small refrigeration systems

Former regulation

15.9 Contractor – Small refrigeration systems

This subclass authorizes construction work that is not reserved exclusively for master pipe-mechanics relating to air-conditioning refrigeration systems with a cooling capacity not exceeding 20 kilowatts and a refrigerant of group A1, A2 or a mixture of both, according to the classification provided for in CSA B-52 Mechanical Refrigeration Code, 1999 edition, published by the Canadian Standards Association, taking into account further amendments that may be made. It also authorizes similar or related construction work.

New regulation

The regulatory amendments are highlighted.

15.9 Contractor – Small refrigeration systems

This subclass authorizes construction work that is not reserved exclusively for master pipe-mechanics relating to air-conditioning refrigeration systems with a cooling capacity not exceeding 20 kilowatts and a refrigerant of group A1, A2 or a mixture of both, beginning of the modification according to the classification in the table on refrigerants and charges of the CSA B-52 Mechanical Refrigeration Code, published by the Canadian Standards Association. end of the modificationbeginning of the modification It also authorizes construction work relating to the heating and air conditioning devices of a pulsed air system, whose capacity does not exceed 40 kW and that use a refrigerant referred to in the first paragraph, provided that the contractor also holds the appropriate subclass 15.1, 15.1.1, 15.7 or 15.8. end of the modificationbeginning of the modification In addition, this subclass authorizes construction work relating to the heating and air conditioning devices of a hydronic system, whose capacity does not exceed 40 kW and that use a refrigerant referred to in the first paragraph, provided that the contractor also holds the appropriate subclass 15.4 or 15.4.1. end of the modification It also authorizes similar or related construction work.

Should you modify your licence?

In addition to subclass 15.9, a contractor must hold the subclass 15.4 or 15.4.1 if he wishes to carry out construction work relating to apparatus used to heat and air-condition a hydronic heating system with a capacity not exceeding 40 kilowatts and a refrigerant of group A1, A2 or a mixture of both, according to the classification in the table on refrigerants and charges of the Mechanical Refrigeration Code, CSA B-52, published by the Canadian Standards Association. Moreover, in addition to subclass 15.9, a contractor must hold the subclass 15.1, 15.1.1, 15.7 or 15.8 if he wishes to carry out construction work relating to apparatus used to heat and air-condition a pulsed air heating system with a capacity not exceeding 40 kilowatts and a refrigerant of group A1, A2 or a mixture of both, according to the classification in the table on refrigerants and charges of the Mechanical Refrigeration Code, CSA B-52, published by the Canadian Standards Association. Therefore, if you intend to carry out this type of work, and you’re not holding the appropriate subclasses, you must get the new qualifications required before January 16, 2017. You may:
  • determine the appropriate subclass to obtain depending on the work you’re planning, and look into the definitions of 15.1, 15.1.1, 15.4, 15.4.1, 15.7 and 15.8.
  • learn how to add a new subclass to your licence by consulting the page Adding a class or a subclass, in the section Licence and examinations.

15.10 Contractor – Refrigeration

Former regulation

15.10 Contractor – Refrigeration

This subclass authorizes construction work that is not reserved exclusively for master pipe-mechanics relating to any refrigeration system, including work related to airconditioning, industrial processes and food preservation. It also authorizes construction work in subclass 15.9. Lastly, it authorizes similar or related construction work.

New regulation

The regulatory amendments are highlighted.

15.10 Contractor – Refrigeration

This subclass authorizes construction work that is not reserved exclusively for master pipe-mechanics relating to any refrigeration system, including work related to airconditioning, industrial processes and food preservation. beginning of the modification It also authorizes construction work relating to the heating and air conditioning devices of a pulsed air system provided that the contractor also holds the appropriate subclass 15.1, 15.1.1, 15.7 or 15.8. end of the modificationbeginning of the modification In addition, this subclass authorizes construction work relating to the heating and air conditioning devices of a hydronic system provided that the contractor also holds the appropriate subclass 15.4 or 15.4.1. end of the modification Lastly, it authorizes similar or related construction work.

Should you modify your licence?

In addition to subclass 15.10, a contractor must hold the subclass 15.4 or 15.4.1 if he wishes to carry out construction work relating to apparatus used to heat and air-condition a hydronic heating system. Moreover, in addition to subclass 15.10, a contractor must hold the subclass 15.1, 15.1.1, 15.7 or 15.8 if he wishes to carry out construction work relating to apparatus used to heat and air-condition a pulsed air heating system. Therefore, if you intend to carry out this type of work, and you’re not holding the appropriate subclasses, you must get the new qualifications required before January 16, 2017. You may:
  • determine the appropriate subclass to obtain depending on the work you’re planning, and look into the definitions of 15.1, 15.1.1, 15.4, 15.4.1, 15.7 and 15.8
  • learn how to add a new subclass to your licence by consulting the page Adding a class or a subclass, in the section Licence and examinations.

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