Standard on Contracting for Assessment Services (IAAO Technical Standards)

This standard describes and makes recommendations on the development, awarding, and monitoring
of contracts for assessment services. Each major section begins with the main principles
covered in that section, followed by a description of those principles.

The key principles within this standard are as follows:
• The solicitation for contract services must clearly describe the project, including major
deadlines and the means by which success will be measured.
• The contract for services must clearly and completely describe the project as well as the
parties involved and their responsibilities.
• There must be a complete understanding of the methods and means for monitoring the
project, including the determination of project completion.

Assessment contracts can cover any services relating to the discovery, listing, appraisal, and
assessment of property including data collection and mapping; development of construction
cost or valuation manuals; complete or partial revaluations; specialized consulting services; tax
policy matters; and system design and implementation including development of appraisal and
assessment software.