COC certificates- what should I be looking for?

Hi Valerie, Invoices w/ the line-item $ value(s) and COC a number from the FSC certified truss fabricator should be adequate. The fabricator has modified the FSC lumber they purchased. They have cut it and put it into an assembly (I.E. Trusses). They will determine it's FSC properties based on what they actually put into the truss...for example the trusses may be assembled from 'Mixed Sources' or they may be 'Pure' FSC. You shouldn't need the individual lumber pieces spelled out, but line-items for the different trusses (assuming there is more than one type) would help validate your claim. Getting the invoices with the shop drawings would be perfect, of course that may not be feasible if the purchase is not actually 'inked' until after the shops are approved. However, you should get the fabricators COC number / certificate with the shops as validation that they are in fact an FSC Certified fabricator and the shops should state that the trusses will be FSC certified. Preferably the Specifications would be clear that the supplier / fabricator must provide line-itemed invoices with $ values for each line-item. Suppliers / fabricators are sometimes reluctant to do this and having it spelled out in the spec can be helpful. You will also need line-itemed invoices for the NON-FSC certified wood as part of the submittal. Best, Doug

Can you give a little more detail regarding invoices? Are you requiring the raw material invoice and its costs? Or, the assembled truss? Both?