The use of marginable securities is governed by which FRB Regulation?

The use of marginable securities is governed by the Federal Reserve Board's Regulation T. This regulation outlines the rules for the extension of credit by brokers and dealers to customers for the purpose of purchasing securities, specifically addressing the requirements around the use of margin accounts. Regulation T sets limits on the amount of credit that can be extended and specifies which types of securities are eligible to be purchased on margin. It is crucial for managing risk in the securities market and ensuring that investors understand the implications of borrowing funds to invest.

The option focusing on Regulation T is pertinent for anyone involved in trading or investing in securities, as it significantly impacts the operations of broker-dealers and the way investors can manage their capital. Understanding the intricacies of Regulation T is essential for compliance and strategic investment planning.