The staff of the Division of Investment Management (IM) recently issued a flurry of interpretive guidance regarding when advisers are deemed to have custody of their clients’ funds and securities. The guidance covers transfers among a client’s custodial accounts, standing letters of instruction to a custodian, and inadvertent custody under the client’s custodial agreement. The guidance does not affect family offices exempted from the Investment Advisers Act of 1940 (Advisers Act) by Rule 202(a)(11)(G)‑1. The guidance also does not address issues commonly faced by family offices that must register under the Advisers Act.