Which certificate is specifically for one- or two-family dwelling sprinkler systems?

• A. General Certificate
• B. Limited Use Certificate
• C. Dwelling Certificate
• D. Specialty Residential Certificate

Answer: (C)

The main idea is knowing which certificate matches the scope of residential work. The badge that is specifically tied to one- or two-family homes is the Dwelling certificate. Its name makes the scope clear: it authorizes installers to handle residential sprinkler systems in single-family and duplex-type dwellings. This is why it’s the best answer—they’re the certification designed precisely for those dwelling types.

Other certificates cover broader or different contexts. A General certificate allows work across most occupancies, not limited to homes. A Limited Use certificate covers a narrower, defined scope that isn’t exclusively tied to one- or two-family dwellings. A Specialty Residential certificate covers certain residential scenarios that aren’t strictly the standard dwelling installations.