What additional coverage can be included under the B and M policy?

The inclusion of ammonia contamination under a Boiler and Machinery (B and M) policy is significant because such coverage directly addresses the potential risks associated with the operation of industrial machinery and equipment. Ammonia is often used in refrigeration systems and industrial applications, where leaks or contamination can pose serious health hazards and environmental damage. This additional coverage can help businesses address the financial implications of incidents involving ammonia, including cleanup costs, legal liabilities, and potential business interruptions due to regulatory compliance issues.

In contrast, the other options do not align specifically with the niche protections offered by a B and M policy. Base coverage for all fire-related incidents applies more broadly to property insurance, while high-risk construction projects might not be adequately covered unless specifically included in a separate policy. Compensation for lost revenue is generally associated with business interruption insurance rather than a B and M policy, which focuses more on physical damage to machinery and associated risks. Thus, ammonia contamination is the best fit for additional coverage under a Boiler and Machinery policy, reflecting the specialized nature of this insurance product.