Vendor invoice?

Accountability is held with the final receipient and COC certificate holder, so your window subcontractor's documentation is all you need. Every step along the way of the chain-of-custody, the receiving party (or subcontractor) is responsible and accountable for verifying the supplier's (company/sub they are getting the material from) certification is accurate and up to date. This can be done at www.fsc-info.org. When purchasing and selling FSC products, all material quantities and descriptions must be tracked to ensure they have not sold more FSC product than they purchased, and that the correct claim has been passed on. Annual audits confirm that procedures are being followed by all certified companies. We have our CoC certification and this audit process is a very thorough one to keep procedures and documentation current. So, if you have the final recipient's COC number and paperwork, this will suffice for documentation of the entire trail, regardless of the number of hands that FSC material went through to get to the final subcontractor.