A503–2007 (formerly A511–1999)
Guide for Supplementary Conditions
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AIA Document A503™–2007 is not an agreement, but is a guide containing model provisions for modifying and supplementing AIA Document A201™–2007, General Conditions of the Contract for Construction. It provides model language with explanatory notes to assist users in adapting AIA Document A201–2007 to specific circumstances. A201–2007, as a standard form document, cannot cover all the particulars of a project. Thus, AIA Document A503–2007 is provided to assist A201–2007 users either in modifying it, or developing a separate supplementary conditions document to attach to it. NOTE: A511–1999 expired in 2009.