Which information is typically included in a bill of materials (BOM)?

• A. Colors of parts and packaging.
• B. Production schedule and routing.
• C. Part numbers, descriptions, quantities, materials, units, supplier information, and costs and lead times.
• D. Customer names and addresses.

Answer: (C)

A bill of materials lists all the components that make up a product and the essential details needed to obtain and use them. The best choice includes part numbers to identify each item, descriptions to clarify what the item is, quantities to specify how many are needed, materials to define what the item is made of, units to standardize measurement, supplier information to know where to buy, and costs and lead times to estimate price and delivery. This combination keeps procurement, costing, and production planning organized and accurate, guiding purchase orders and schedules.

Colors of parts and packaging can be important for finish or branding, but they are not the core data needed to build or procure a product, so they aren’t the defining contents of a BOM. Production schedules and routing belong to manufacturing process planning, not the component list itself. Customer names and addresses are sales-related data and outside the scope of the component structure necessary to assemble the product.