In all my 40 LEED projects I have never included labor and delivery to a material's cost total. I received the following comments and am at a loss as to how to respond:

Let me also be clear that this is for MRc4, not MRc7.

The LEED Form states that 23.7% of the total building materials content, by value, has been manufactured using recycled materials. However, in order to demonstrate compliance, the following must be addressed.

TECHNICAL ADVICE

1. It appears that the Plyboo Sierra Sahara Strand and Plyboo Dimensional Lumber were sold to Mission Bell rather than to the General Contractor or the Owner of the project (a.k.a. the end-user) which may indicate that these products are raw products that are part of an assembly and therefore it is unclear if the FSC Chain of Custody (COC) has been in place until the assemblies reached the project site. Entities which modify the products packaging or form (except as required for installation) must have a CoC Certification. It is unclear whether Mission Bell has and/or requires a Chain-of-Custody (CoC) certification.

2. It is unclear if the total cost of assemblies, instead of raw materials, have been included in the calculation, as required. Provide a narrative which describes the Chain-of-Custody for Plyboo Sierra Sahara Strand and Plyboo Dimensional Lumber including how the products were used in the project. Explain who manufactured, distributed, modified, and installed the products. Revise the calculation as necessary to include the cost of whole assemblies, including labor to construct the assembly and delivery to the project site. Ensure that this information is reported consistently throughout all MR credits. Provide additional invoices as necessary to confirm any revised costs. See LEED Interpretation 10296 for further information.