The A201 is a major part of the contract for construction and covers the three "r's"; it sets forth the rights, responsibilities, and relationships of the Owner of the project, the Direct Contractor, and the Architect.
A205™ General Conditions of the Contract for Construction of a Small Project is considered the keystone document of the Small Projects family, since it is specifically adopted by separate reference into both the AIA A105™ and the AIA B155™.
The A205™ is a vital document, in that it is used to allocate proper legal responsibilities among the parties, while providing both a common ground and a means of coordination within the Small Projects family.
The A205™ is a condensed document that omits arbitration and other alternative disputes resolution (ADR) provisions. ADR provisions may be included in A105™ under Article 6, "Other Terms and Conditions".
Usually sold only as a set with a common instruction sheet, the two documents (A105™ and A205™) have been developed for use when payment to the Contractor is based on a stipulated sum (fixed price) and when the project is modest in size and brief in duration.
A105™, A205™, and B155™, comprise the Small Projects family of documents.
These documents are written for use as a set. Although A105™, A205™, and B155™ share some similarities with other documents, according to the AIA the Small Projects documents should NOT be used in tandem with other document families without careful side-by-side comparison of contents.