TL;DR
An architect's supplemental instruction, or ASI, is a written directive from the architect that clarifies the drawings or makes a minor change involving no adjustment to the contract price or schedule. It is the lightest tool in the change hierarchy: anything affecting cost or time must instead go through a change order the owner signs.
What it means
An architect's supplemental instruction, or ASI, is a written directive from the architect that clarifies the drawings or makes a minor change involving no adjustment to the contract price or schedule. It is the lightest tool in the change hierarchy: anything affecting cost or time must instead go through a change order the owner signs. Typical subjects are dimension corrections, finish substitutions of equal value, and detail clarifications a contractor requested. Each is numbered and becomes part of the contract documents, so the field set should have every one attached.
Where it sits in the glossary
Architect's supplemental instruction is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
License: CC-BY-4.0 — quote freely with attribution to ProFix Editorial Team / ProFix Directory.