Section 321.27 - Instructions and guidance(a) The Bureau of the Fiscal Service will provide Federal Reserve Processing Sites, TRS Sites, and paying agents with instructions and guidance on how to process redemption transactions. This information is available online at the Bureau of the Fiscal Service's Web site at www.treasurydirect.gov, Federal Reserve Processing Sites, and TRS Sites. Paying agents must follow these instructions and guidance.(b) The Federal Reserve Operating Circular sets forth additional rights and obligations of paying agents with respect to redemption transactions. Additional instructions and guidance are available online at the Federal Reserve Bank Services Web site at www.FRBservices.org.(c) Paying agents are required to process redemptions in accordance with the terms and conditions cited in paragraphs (a) and (b) of this section. The Secretary of the Treasury, or a designee, reserves the right to hold an agent liable whose failure to follow these instructions results in an incorrect amount being paid for a redeemed security. 77 FR 16167 , Mar. 20, 2012