Instruments of Service describe the scope of work produced by the architect. Which description best captures this scope?

• A. Only final construction drawings and specifications
• B. All creative work including final CDs, notes, study models, environmental reviews, cost estimates, sketches, and early versions
• C. Only environmental review documents
• D. Only cost estimates

Answer: (B)

Instruments of Service are the architect’s design outputs—the entire set of documents and materials that communicate the project design and guide construction. The description that best captures this scope includes all the creative work produced during the project: final Construction Documents, notes, study models, environmental reviews, cost estimates, sketches, and early versions. This shows that IOS encompasses not just the final drawings but the full range of design development materials and analyses created along the way. The other options are too narrow: focusing only on final construction drawings and specifications misses the intermediate and study work; only environmental reviews or only cost estimates address a single facet of the design process.