Disclosure requirements to close a Line of Credit

Can anyone provide me with what language is in your Line of Credit Disclosures that would all the LOC to be closed due to a change in credit worthiness (eg a credit review based on pulling a credit report)?  I am looking to see how robust ours is.

Also, can anyone provide me with what Operational processes for loan processing/underwriting/finalizing that have Reg Z / TIL requirements or implications?  I am not looking at Reg Z requirements once the LOC is opened only from application to funding. My research indicates only that we must provide the disclosures to the member prior to them taking an advance when funding the LOC or before the first transaction is made.