Financial Accounts Reporting (United States of America) Regulations 2014
13 Inspection of records and provision of information and assistance
(1) An authorised officer may by notice in writing require a reporting financial institution to furnish him or her within such time, not being less than 14 days, as may be provided by the notice, with such information (including copies of any relevant books, records or other documents) as he or she may reasonably require for the purpose of determining whether information specified in a return under these Regulations is correct and complete.
(2) An authorised officer may require a reporting financial institution to produce books, records or other documentation and to provide information, explanations and particulars and to give all assistance which the authorised officer may reasonably require for the purpose of the powers and duties conferred on him or her by subsection (7) of section 891E of the Act.
(3) An authorised officer may make extracts from or copies of all or any part of the books, records or other documents or other material made available to him or her or require that copies of books, records or other documents be made available to him or her for the purpose of exercising or performing his or her powers under these Regulations.