Class Code: 3724

Per NCCI's Scopes Code Description:

Code 3724 applies to contractors specializing in the erection or repair of heavy machinery or equipment at their customers’ locations, which may include plants, factories, and mills. This classification also applies to contractors specializing in the installation or repair of electrical apparatus at their customers’ locations. The term “electrical apparatus” means electrical power equipment such as, but not limited to, heavy motors, generators, converters, transformers, compressors, and power switchboard equipment.

Code 3724 also applies to the installation of substation equipment in addition to central station equipment; however, it does not apply to erecting poles, stringing wires, installing transformers on poles or on the outside of buildings, or making service connections. While the operations vary depending on the type of job, there is a considerable amount of heavy lifting, frequently by the use of hoists or cranes.

The installation of overhead (garage) doors is assigned to this classification when this work is performed by specialty contractors. If these doors are installed by the builder of an entire residence, the appropriate carpentry code is assigned.

The installation or repair of compressors, motors, or other machinery of a refrigeration unit, in conjunction with an air-conditioning system, is separately rated to Code 5537. The installation or repair of compressors, motors, or other machinery of refrigerator appliances is assigned to Code 9519. The installation, repair, or service of commercial and residential central vacuum systems away from the employer’s premises that involves operations on compressors, motors, pipes, tubing, or other related machinery is assigned to Code 3724.

Additional operations included in this code are the installation of acetylene gas machines, conveyor systems, gas benches and retorts, grates in steam boilers, leather beltings, gas station tanks, and automatic car washing equipment and the erection of temporary floodlights. Ground-supported installation of solar panels is also assigned to Code 3724. Solar panel installation on roofs, plumbing, and electrical work are separately rated.

Commercial oil or gas burner installations or pump installations are assigned to Code 3724, while similar operations of a domestic nature are assigned to Code 5183.

Water tower erection is assigned to either Code 3724 or Code 5040. The erection of water towers that consist primarily of iron or steel is assigned to Code 5040. The erection of water towers that consist primarily of other materials is assigned to Code 3724. It is the general practice to erect these towers from prefabricated parts and sections which are delivered to the job location. The framework is assembled by bolting sections together, and the necessary pipes, fans, motors, or other parts are installed.

The installation of platform or beam-type scales is assigned to Code 3724. Assign coin-operated scale installation to Code 5192. Assign counter-type scale installation to Code 5191.

Code 3724 applies to contractors who perform satellite dish installation with division of payroll permitted for pouring concrete pads (Code 5213) and ancillary wiring inside buildings (Code 5190). Code 3724 includes installation of large satellite dishes on the ground or on roofs. Small satellite dishes (36 inches or less) mounted on buildings are assigned to Code 9516. Refer to Code 7600 when installed by a telecommunications employer.

Code 3724 includes installation or repair of truck trailer refrigeration systems when this work is performed away from the premises of the repairer or installer. Assign Code 3179 to these operations when the installation or repair work is performed at the employer’s shop. This distinction is made since Code 3724 includes the “not otherwise classified” installation or repair of equipment at a customer’s premises while Code 3179 includes refrigeration work at the installer or repairer’s shop.

Code 3724 is not available for any of the operations noted in this scope when these operations are performed by an employer’s employees on equipment belonging to the employer. Basic Manual Rule 1-B-3 indicates that maintenance or repair of an employer’s equipment by the employer’s employees is a general inclusion.

The repair of commercial sewing machines is classified as follows:

9519 Household and Commercial Appliances—Electrical—Installation, Service or Repair & Drivers
3643 Sewing Machines—Commercial—Repairing and Rebuilding Electric Motors
3574 Sewing Machines—Commercial—Repairing and Rebuilding Sewing Machines, Cutters, and Parts in Shop
3724 Sewing Machines—Commercial—Repairing, Installing, and Dismantling in Sewing Plants & Drivers

Refer to Code 9519 for the installation, service, or repair of noncommercial sewing machines.

The installation, service, or repair of utility meters is classified as follows:

   
•    Code 5183—Plumbing NOC & Drivers—applies to water and gas meters
•    Code 5190—Electrical Wiring—Within Buildings & Drivers—applies to electric meters
•    Code 7520—Waterworks Operation & Drivers—applies to water meters when performed by an employee of a water plant

Certain Code 3724 operations are designated as “not otherwise classified” (NOC). These NOC operations apply to an employer only when no other classification more specifically describes the employer’s operations. The following is a representative list of operations somewhat related in nature to Code 3724 operations that are not assigned to Code 3724.

3726 Boiler Installation or Repair—Steam
7539 Electric Light or Power Co.—NOC—All Employees & Drivers
5160 Elevator Erection or Repair
5146 Furniture or Fixtures Installation—Portable—NOC
5191 Office Machine Installation, Inspection, Adjustment, or Repair
3719 Oil Still Erection or Repair
7600 Telecommunications Co.—Cable TV, or Satellite—All Other Employees & Drivers
5192 Vending or Coin Operated Machines—Installation, Service or Repair & Salespersons, Drivers

Please refer to Code 5403 for extra-territorial premium determination guidelines that may apply to employers that have operations outside their headquarters’ state.

CROSS-REF.  DOOR—INSTALLATION—OVERHEAD & DRIVERS

CROSS-REF.  ELECTRICAL APPARATUS INSTALLATION OR REPAIR & DRIVERS

(N/A TX)

Note:  Code 3724 shall not be assigned to employees of insureds engaged in the installation or repair of electrical apparatus on the premises of the insured. Such payroll must be included in the governing classification. Erection of poles, stringing of wires, installation of service transformers on poles or on the outside of buildings or the making of service connections to be separately rated as Code 7538—Electric Light or Power Line Construction.

CROSS-REF.  FLOODLIGHTS—ERECTION OF TEMPORARY FLOODLIGHTS & DRIVERS

(N/A TX)

CROSS-REF.  GAS OR OIL—BURNER INSTALLATION NOC & DRIVERS

(N/A MA, TX)

CROSS-REF.  MILLWRIGHT WORK NOC & DRIVERS

(N/A TX)

Note:  Applies to the erection or repair of machinery or equipment. Code 3724 shall not be assigned to employees of insureds engaged in millwright work on the premises of the insured. Such payroll must be included in the governing classification.

CROSS-REF.  PUMP INSTALLATION—NOC & DRIVERS

(N/A MA, TX)

CROSS-REF.  REFRIGERATION—COMMERCIAL—INSTALLATION OR REPAIR OF COMPRESSORS, MOTORS, OR OTHER MACHINERY & DRIVERS

(N/A FL, MA, OR, TX)

Note:  A refrigeration system is defined as “domestic” whether located in a residential or commercial setting provided it is a “reach in” refrigeration system having not more than a 1/3 h.p. motor or more than a 20-cubic-foot capacity. All other types of refrigeration are considered commercial.

CROSS-REF.  SATELLITE DISH INSTALLATION—APPLIES TO GROUND OR ROOF MOUNTED INSTALLATIONS—ERECTION OF DISH AND AUXILIARY EQUIPMENT & DRIVERS

(N/A MA, TX)

CROSS-REF.  SCALES—INSTALLATION OR ADJUSTMENT—PLATFORM OR BEAM TYPE & DRIVERS

CROSS-REF.  SEWING MACHINES—COMMERCIAL—REPAIRING, INSTALLING, AND DISMANTLING IN SEWING PLANTS & DRIVERS

(N/A TX)

CROSS-REF.  TANK—INSTALLATION—GASOLINE SERVICE STATIONS & DRIVERS

(N/A MA, TX)

Rate per $100. of Renumeration: $ 2.88

Construction Exemption Required: Yes