What notice requirements does AIA A201 impose for claims?
Last reviewed July 5, 2026
AIA A201 requires the contractor to give written notice of a claim to the owner and architect within 21 days after the event or condition arises. This notice must include details of the claim and any potential impacts on the project schedule or costs.
Key points
- 21-day notice requirement for claims
- Written notice to owner and architect
- Details of claim and impacts must be included
If a contractor fails to provide this notice within the specified time, they may lose the right to seek compensation or adjustments. This ensures that claims are addressed promptly and helps avoid disputes later on.
How Alloovium helps
Alloovium can help track deadlines and obligations related to claims, keeping your notices organized and on time.
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General information for US construction professionals — not legal advice. Lien deadlines, retainage caps and notice rules vary by state; verify with the state statute or a construction attorney.