What are written notes arranged in a list form that provide instructions about materials and methods of work?

The correct answer is specifications, often referred to as "specs." Specifications are critical documents in construction that provide detailed written instructions about the materials, quality, and methods required for the project. They outline what is needed to complete the work according to the contract and ensure that the contractor understands exactly what is expected in terms of performance, standards, and compliance with relevant regulations.

Specifications serve to complement plans and drawings, which primarily depict the visual aspects of the project, such as layout and design. While blueprints refer to a specific type of construction drawing that includes detailed graphical representations of structures, they do not include the explicit instructions regarding materials and methods. Guidelines may provide general advice or best practices but lack the precise and legally binding nature of specifications. The clarity and detail offered in specifications are vital for any construction project to maintain quality, ensure compliance, and facilitate proper execution of the work.