General Securities Sales Supervisor (Series 10) Practice Exam 2025 - Free Series 10 Practice Questions and Study Guide.

A post-effective amendment to a registration statement becomes effective immediately upon filing with the SEC. This rule is established to streamline the process for issuers who may want to update their registration statements due to changes in material information or other relevant factors. The immediate effectiveness allows companies to more quickly engage in the securities offering process without extended delays, which is important in a fast-paced financial marketplace.

The other options present waiting periods after filing, which are not applicable to post-effective amendments. Instead, those timeframes might pertain to other regulatory processes or specific situations under different regulatory frameworks, but they do not apply to the immediate effectiveness criteria for post-effective amendments.