The Board of Governors of the Federal Reserve System (the Board) proposed amendments to Regulation CC to facilitate the banking industry's ongoing transition to fully electronic interbank check collection and return, including proposed amendments to subpart C to condition a depositary bank's right of expeditious return on the depositary bank agreeing to accept returned checks electronically, either directly or indirectly, from the paying bank. The Board also proposed amendments to subpart B, the funds availability schedule provisions to reflect the fact that there are no longer any non-local checks. The Board proposed to revise the model forms in appendix C that banks may use in disclosing their funds availability policies to their customers and to update the preemption determinations in appendix F. Finally, the Board requested comment on whether it should consider future changes to the regulation to improve the check collection system, such as decreasing the time afforded to a paying bank to decide whether to pay a check in order to reduce the risk to a depositary bank of needing to make funds available for withdrawal before learning whether a deposited check has been returned unpaid.