Oregon Construction Contractors (CCB) Practice Test

'Commencement of the improvement' signifies the start of construction activities on a project. This terminology is often used in contracts and legal documents to indicate when the actual building work begins or when materials necessary for construction are delivered to the job site. This moment is crucial as it marks the point at which obligations and timelines in the contract become effective and may trigger specific legal rights and responsibilities, such as lien rights, for contractors and subcontractors.

While the other options represent relevant aspects of a construction project, they do not accurately define the moment of 'commencement of the improvement.' For example, project completion refers to the end of construction, while the submission of design plans and the acquisition of permits are preparatory steps that take place before actual construction can begin. Therefore, commencement is specifically concerned with the initiation of construction activities, making it a critical milestone in the construction process.