Which major step in processing an emergency incident involves ensuring the information received is adequate for dispatching units?

The major step in processing an emergency incident that involves ensuring the information received is adequate for dispatching units is location validation. This step is crucial because accurate and precise location details are essential for first responders to reach the emergency scene quickly and effectively. Location validation involves confirming the address or location described by the caller, checking for inaccuracies, and ensuring that any details about hazards or challenges in accessing the scene are noted. This process helps prevent delays that could arise from misunderstandings or unclear information, ultimately enhancing the response time and effectiveness of the units dispatched.

The other options encompass different important components of incident management. Incident command setup refers to establishing a leadership structure for managing the incident response effectively. Report documentation involves recording details after the incident has occurred to maintain a record for further analysis and reporting. Resource allocation focuses on the efficient distribution of available resources, ensuring that the right units are dispatched to the right places, but this can only be effectively done if location validation has first taken place to ensure that the information is correct.