CLASSIFICATIONS
DISCLAIMER: The Mississippi State Board of Contractors (MSBOC) has made every effort to clearly define the classifications of licensure and the scope of work covered. However, any discrepancies or questions regarding the applicability of these definitions are ultimately subject to the final decision of the Board. The Board retains the authority to classify the types of work or projects for which a contractor is deemed qualified and entitled to perform under the license issued in accordance with Miss. Code Ann. §31-3-13(h).
Scroll below to view the classifications of licensure offered by MSBOC. Click on the arrow to see a definition and scope of work. There may be additional requirements by other agencies. As a courtesy, MSBOC has tried to note the classifications that may involve additional requirements. However, it is the contractor’s responsibility to keep abreast of law and regulation changes and/or requirements from other agencies.
Holding a major classification entitles the license holder to perform all of the specialty classifications noted within the major classification category. Applicants who do not desire a major classification may choose an unlimited number of specialty classifications. One selection is included with the application fee, but each additional selection requires an additional $100 fee. Fees are non-refundable. Please contact a licensing agent for questions or additional information.
COMMERCIAL CLASSIFICATIONS
MAJOR CLASSIFICATION:
BUILDING CONSTRUCTION (TEST REQUIRED)
(Trade or NASCLA accredited exam accepted)
A major classification that involves construction of commercial buildings and single-dwelling or multiple-dwelling residential structures. The scope of work includes additions, alterations, conversions, expansions, reconstruction, renovations, and rehabilitations to an existing structure as well as the landscaping, earthwork, parking areas, driveways, sidewalks, etc. Holding a major classification entitles the license holder to perform the specialty classifications noted within the respective major classification category.
SPECIALTY CLASSIFICATIONS:
BUILDING CONSTRUCTION (50)
MAJOR CLASSIFICATION:
ELECTRICAL (TEST REQUIRED)
(Trade or NASCLA accredited exam accepted)
A major classification that involves installation, repair, alteration, addition to or design of electrical wiring, fixtures, appliances, apparatus, raceways, conduit, or any part thereof, which generates, transmits, transforms, or utilizes electrical energy in any form, including the electrical installations and systems within plants and substations. Holding a major classification entitles the license holder to perform the specialty classifications noted within the respective major classification category.
SPECIALTY CLASSIFICATIONS:
ELECTRICAL (9)
MAJOR CLASSIFICATION:
HIGHWAY STREET AND BRIDGE CONSTRUCTION (TEST REQUIRED)
A major classification that involves the construction of highways, roads, streets, bridges and other public ways used for vehicular travel, including any drains, tunnels, bridges and other appurtenances to the construction. The classification includes traffic control, signs, striping, guardrails – non-electrical. This classification is the only classification that covers airport runway construction. Holding a major classification entitles the license holder to perform the specialty classifications noted within the respective major classification category.
SPECIALTY CLASSIFICATIONS:
HIGHWAY STREET AND BRIDGE CONSTRUCTION (22)
MAJOR CLASSIFICATION:
HEAVY CONSTRUCTION (TEST REQUIRED)
A major classification that involves construction, erection, installation, maintenance, or repair of water, sewer and gas pipelines, excavation and grading, paving, traffic control (non-electrical) welding, concrete, steel, piles and plant construction. Holding a major classification entitles the license holder to perform the specialty classifications noted within the respective major classification category.
SPECIALTY CLASSIFICATIONS:
HEAVY CONSTRUCTION (33)
MAJOR CLASSIFICATION:
MECHANICAL (TEST REQUIRED)
A major classification that involves all aspects of heating, cooling, refrigeration and associated equipment piping and ductwork as well as plumbing work. Scope of work includes installation, maintenance, repair, fabrication, alteration, or extension of central air-conditioning, refrigeration, heating and ventilating systems, including duct work; boiler and unfired pressure vessel systems, lift station equipment and piping, and all appurtenances, apparatus, or equipment used in connection therewith and any duct cleaning and equipment sanitizing which requires partial disassembling of the system; piping, insulation of pipes, vessels and ducts, pressure and process piping, pneumatic control piping, gasoline tanks and pump installations and piping for same, standpipes, air piping, vacuum line piping, oxygen lines, nitrous oxide piping, ink and chemical lines, fuel transmission lines, liquefied petroleum gas lines and natural gas fuel lines; replace, disconnect or reconnect power wiring on the load side of the dedicated existing electrical disconnect switch, install, disconnect and reconnect low voltage heating, ventilating, and air-conditioning control wiring, install condensate drain from an air-conditioning unit to an existing safe waste or other approved disposal other than a direct connection to a sanitary system. This classification includes any incidental excavation work, but does NOT include electrical power wiring. Holding a major classification entitles the license holder to perform the specialty classifications noted within the respective major classification category.
SPECIALTY CLASSIFICATIONS:
MECHANICAL (15)
MAJOR CLASSIFICATION:
MUNICIPAL AND PUBLIC WORKS (TEST REQUIRED)
A major classification that involves water and sewer pipelines and plants, installation of automated meter reading equipment for water meters and associated excavation, grading and paving. The scope of work includes cess pools, storm drains and other sewage disposal and drain structures. It also includes TV or camera inspection of sewer lines. Holding a major classification entitles the license holder to perform the specialty classifications noted within the respective major classification category.
SPECIALTY CLASSIFICATIONS:
MUNICIPAL AND PUBLIC WORKS (20)
STAND-ALONE CLASSIFICATIONS:
STAND-ALONE (2)
LIMITED SPECIALTY SERVICES:
Examples of work included in this Specialty Classification are noted below.
LIMITED SPECIALTY SERVICES (11)
RESIDENTIAL CLASSIFICATIONS:

