The Code of Standard Practice for Steel Buildings and Bridges, hereafter referred to as the Code, sets forth criteria for the trade practices involved in the design and construction of steel buildings, bridges, and other structures, and shall apply to all projects that involve fabricated structural steel. In the absence of specific instructions to the contrary in the contract documents, the trade practices that are defined in this Code shall govern the fabrication and erection of structural steel. Specific instructions to the contrary shall not violate any provisions of applicable building codes. The contract with the fabricator or erector shall identify by Code section number any specific instructions to the contrary not contained in the design documents or specifications. If specific instructions to the contrary have not been provided as required in this section, the provisions of the Code shall apply as written herein.