Class 9534
Code 9534 is applied to insureds that engage in mobile crane, hoisting or rigging operations for others provided such operations are not otherwise classified in the MA Manual.
When mobile crane, hoisting, or rigging operations are performed by an employer as a normal and incidental part of an employer’s construction or erection operations, these mobile crane, hoisting or rigging operations are assigned to the employer’s construction or erection operation that required this work. For example, hoisting or rigging operations performed by a concrete construction contractor as part of the concrete construction work are assigned to the concrete construction class that applies to the work for which the crane, hoisting, or rigging operation is performed.
When mobile crane, hoisting, or rigging operations are performed by an employer as a specialty service for others, this work is classified to Code 9534.
Code 9534 also applies to employers that perform mobile crane, hoisting, or rigging operations while performing other work—be it of a construction, erection or other nature—that does not ordinarily require mobile crane, hoisting, or rigging operations. For example, a contractor is hired to perform paving operations and provide mobile crane, hoisting, or rigging services at a particular job. Because paving work does not ordinarily require mobile crane, hoisting, or rigging operations, the appropriate paving code is assigned to the paving work and Code 9534 is assigned to the mobile crane, hoisting, or rigging operations.
This classification includes employers that rig steel derricks that are used in connection with the erection of steel structures. In connection with such work, particularly in tall buildings, it is sometimes necessary to move the derricks to higher levels as the construction progresses. If this work is undertaken by the steel erecting contractor, the payroll is assigned to the appropriate steel construction classification, but when it is undertaken by a specialist mobile crane, hoisting or rigging contractor, Code 9534 is assigned.
Rigging employers that move and hoist heavy articles from the ground to upper stories of buildings from the outside or vice versa by use of cranes with long booms or block and tackle, chain, rope or wire cable also fall within the scope of this classification, as well as employers that install chimes or bells in towers or similar structures.
The leasing or rental of mobile cranes and other hoisting devices without operators is assigned to Code 8107—Machinery Dealer NOC.
Scaffolding: Contractors that erect, repair or remove scaffolds or cement distributing towers, sidewalk bridges or hod hoists, or construction elevators as an incidental part of their construction work to be separately rated. Such operations, when so performed, are to be included in the classification with which the work is associated. Refer to Codes 5403, 7219, and 9533 for other scaffolding and scaffolding-related operations conducted by specialist contractors.
Specialty concrete pumping operations conducted by specialty contractors are assigned by analogy to Class Code 9534—Mobile Crane and Hoisting Service Contractors—NOC—Including Yard Employees & Drivers. In accordance with Rule IV-F-2.—Business Not Described by Any Classification, as detailed in the MA Manual, the appropriate classification phraseology should read as follows: Concrete—Pumping—Specialty Contractor Only—Including Yard Employees & Drivers. It is important to note that any and all concrete pumping operations conducted by concrete construction crews remain properly assigned to the appropriate concrete construction classification(s) applicable to which the concrete is being pumped, not Code 9534.
Class 9534
This classification shall apply to hoisting or lifting operations, requiring the use of mobile hoisting equipment, block and fall, jacks, shoring timbers, rollers, ropes and cables including transportation of such equipment to and from work sites.
This pertains to risks who enter into contracts to perform hoisting or lifting operations exclusively. Such operations include, but are not limited to, the following:
1. The hoisting of machinery and equipment into existing buildings.
2. The hoisting of materials on construction and erection projects, and
3. The use of mobile cranes to load or unload trucks or freight cars.
The payroll developed by insureds performing the above described operations exclusively, shall be assigned to Code 9534 mobile crane and hoisting service contractors.
An employer who performs both hoisting and construction operations on a particular project shall not be assigned Code 9534 mobile crane and hoisting service contractors, but shall have his entire payroll in connection with such project, including the payroll developed in the operation of the mobile crane, assigned to the applicable construction classification.
The following classification procedure is to be followed for risks engaged in trucking or rigging operations:
1. Code 9534, mobile crane and hoisting service contractors - NOC - all operations - Including yard employees & drivers not only is applicable to such operations as described in the classification but also shall be applicable to such operations conducted as a separate operation pursuant to Rule IV-D.-8 Construction or Erection Operations.
2. Incidental rigging performed by trucking or other risks shall be subject to Code 7219, trucking, etc. or the classification applicable to such other risks.
3. When mobile crane and hoisting service work is performed by trucking or other risks and is not incidental to their usual operations, such operations shall be assigned to Code 9534, mobile crane and hoisting service contractors - NOC - all operations - including yard employees & drivers.
Contractors who erect, repair, or remove scaffolds or cement distributing towers, sidewalk bridges or hod hoists or construction elevators as an incidental part of their construction work to be separately rated. Such operations, when so performed, are to be included in the classification with which the work is associated.