Resources Forms & Other Resources for New & Existing Clients Whether you are an existing or a new Allied Customhouse Brokers client, here are the forms you will need:hPower of AttorneyhFORM II RC159hCBP 5106hDOT HS-7hEPA 3520-1hCBP 400 (ACH)hISFhCBP 3299hFDA 776Power of AttorneyDOT HS-7ISFCBP 3299FORM II RC-159EPA 3520CBP 400 (ACH)CBP 5106FDA Form 776