When there is a fire indicated at the location of a 10-13 alarm, which route should be added along with the signal code?

In the context of NYPD communications protocols, when a fire is indicated at the location of a 10-13 alarm, adding OPS, which stands for "Operations," is crucial for coordinating the response effectively. This designation indicates that operational resources must be deployed to manage the situation, reflecting the involvement of multiple units in the response efforts.

Using OPS signals a higher level of operational readiness and response coordination, which is necessary in emergencies, especially during a fire incident. It enables the immediate relay of necessary information to all responding units and ensures that they are prepared for cross-departmental communication and collaboration.

The other options may represent different codes or signals that do not specifically pertain to fire-related operational protocols. Understanding the distinct purposes of these codes helps in effective communication during emergencies, ensuring that the appropriate actions are taken swiftly.