Which document outlines the operational limitations and requirements for dispatchers?

The Federal Aviation Regulations (FAR) Part 121 is the correct reference for the operational limitations and requirements specifically for dispatchers operating under Part 121, which pertains to scheduled air carrier operations. These regulations cover various aspects crucial for flight operations, including the roles and responsibilities of dispatchers, required training, and operational protocols.

FAR Part 121 outlines essential requirements, such as qualifications, duties, and the legal framework through which flight dispatchers work, ensuring compliance with federal safety standards. It provides clarity on operational limits, which are critical for maintaining safety and efficiency during flight operations.

The other documents, while important in their contexts, do not primarily focus on the specific operational standards for dispatchers. The Aircraft Maintenance Manual deals primarily with the maintenance and repair components of the aircraft, the Company Operations Manual provides guidance tailored to a specific airline's practices and policies, and Air Traffic Control Procedures focus on managing air traffic rather than dispatcher regulations. Thus, FAR Part 121 stands out as the comprehensive source detailing the operational limitations and requirements for dispatchers.