1.1This classification establishes a classification of cost summaries for use when estimating program and project costs.

1.2This classification can be applied to construction programs and projects that include one or more construction work projects.

1.3This classification is not based on permanent physical elements of construction (as defined and classified in Classification E1557 for example); rather, the classification items are cost components common to most program and project estimates.

1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.