Under which circumstance is it allowed to estimate compliance for green cleaning products in a multi-tenant building?

Estimating compliance for green cleaning products in a multi-tenant building is permissible when purchasing data is unavailable for some tenants. This flexibility acknowledges the challenges that may arise within multi-tenant scenarios where individual tenants may not consistently provide detailed documentation regarding their cleaning products. In these cases, allowing for estimates helps maintain the integrity of the overall compliance assessment while still promoting green cleaning practices.

Consider a situation where a building management company's operations depend on a diverse group of tenants, each with varying levels of organization and reporting capabilities. If some tenants fail to provide their product purchases in a timely manner, estimating compliance ensures that the overall goal of sustainability isn't undermined simply because of incomplete data. This approach allows for a more comprehensive compliance pathway without penalizing the entire building for a few tenants’ lack of reporting.

For the other options, if all tenants submit their data on time, thorough documentation exists, making estimation unnecessary and not applicable. When tenants only purchase non-green cleaning products, it does not justify estimation, as the intent is to support green cleaning use. If the landlord oversees all cleaning product purchases, there should be concrete data available for compliance rather than relying on estimates, as the landlord would have control over the procurement process. Thus, the correct context for allowing estimates directly