Which regulation specifies requirements to act as a pilot in command under visual flight rules?

The regulation that specifies the requirements to act as a pilot in command under visual flight rules is 14 CFR § 61.57. This section outlines the recent flight experience requirements that pilots must satisfy to act as pilot in command of an aircraft under VFR. Specifically, it details the need for a pilot to have completed a certain number of takeoffs and landings within a given period and includes rules regarding currency, such as remaining current with flight reviews and how long a pilot can go without flying before needing to meet certain requalification requirements.

Understanding the importance of this regulation is crucial, as it ensures that pilots maintain their proficiency and safety standards to operate aircraft effectively in VFR conditions. Maintaining currency helps to reduce the risk of accidents and enhances overall flight safety.

The other options pertain to different aspects of pilot qualifications or requirements. For instance, 14 CFR § 61.19 discusses the general eligibility requirements for airline transport pilot certification, including issues related to medical certificates; 14 CFR § 61.133 relates to the requirements for commercial pilot privileges and limitations, and fulfills a different role than currency under VFR; while 14 CFR § 61.3 outlines the requirement for pilots to possess a valid pilot certificate and medical certificate.