At least how often is a firm required to provide a customer with a statement in writing as to the availability of an investor brochure posted on the MSRB website?

Monthly statements would impose an unnecessarily high burden on firms, as the regulations do not require such frequent communication. The annual frequency is sufficient to keep customers informed without overwhelming them with excessive updates.

While quarterly statements may seem reasonable, they are still more frequent than necessary according to the regulations. The requirement for annual updates strikes a balance between keeping customers informed and not overloading them with information, making quarterly updates excessive.

Providing a statement every three years would not comply with the regulations, which stipulate an annual requirement. This infrequent communication would likely lead to customers missing important updates and information regarding the investor brochure, diminishing the effectiveness of the disclosure.