Which credit specifies that projects must provide a system for measuring water usage?

The credit that specifies projects must provide a system for measuring water usage is the Advanced Water Metering credit. This credit is part of the Water Efficiency category in LEED V4 and aims to encourage projects to implement metering systems to monitor and manage water use effectively. By requiring measurement of water consumption, it promotes water conservation strategies and helps identify areas where water usage can be reduced, which aligns with sustainability goals.

This focus on metering is crucial as it allows for data-driven decisions regarding water efficiency strategies. Accurate measurement enables ongoing assessment and management of water use, ensuring that projects can adapt over time to reduce waste and enhance conservation efforts.

In contrast, the other options primarily address water use reduction strategies rather than the imperative of measurement and monitoring. For example, indoor and outdoor water use reduction credits focus on techniques and fixtures designed to minimize water consumption, while the cooling tower water use credit addresses specific efficiency standards for cooling systems rather than the broader strategy of metering overall water usage.