Which of the following is not one of the major categories for the CSI MasterFormat specifications?

The major categories for the CSI MasterFormat specifications are organized to streamline the construction process and ensure clarity in contract documents. The categories include Bidding requirements, Contract forms, and General conditions, which outline the procedures and standards for bidding, the legal contracts involved, and the general requirements for construction projects.

Bidding requirements cover the essential information necessary for contractors to understand the process of bidding on a project. Contract forms include the legal documents that formalize the agreement between the parties involved. General conditions provide the overarching terms and conditions governing the project, including responsibilities, rights, and obligations of the parties.

The option related to 'Bill of materials' is not considered a major category within the CSI MasterFormat. While a Bill of materials may be important in detailing the specific materials and quantities required for a project, it does not serve as a separate category in the standardized format that governs construction specifications. This distinction highlights the focus of MasterFormat on the broader procedural and legal aspects of construction documentation rather than itemized lists of materials.