On what basis does the contractor receive payment?

The contractor receives payment primarily based on verified quality control (QC) data. This approach ensures that the work performed meets the required standards and specifications set forth in the contract. Verified QC data provides a reliable account of quality and performance, which is essential for justifying payment. It encompasses a range of measures and assessments that confirm compliance with contractual obligations and industry standards, ensuring that the contractor is compensated fairly for work that meets quality expectations.

While other options might seem relevant, they do not reflect the structured process established for payments in construction projects. Estimated costs could vary significantly and may not accurately reflect the actual work done. Reported work completed can be subjective and may not take into account quality or adherence to project specifications. Payment at the contractor's discretion lacks the accountability and objective criteria needed in a contractual relationship, which can lead to disputes and inaccuracies in compensation.