Under TINA, contractors are required to provide actual costs in what format to assist the CO?

Under the Truth in Negotiations Act (TINA), contractors must provide Certified Cost or Pricing Data to assist the Contracting Officer (CO) in determining fair and reasonable pricing. This requirement is established to ensure transparency and accuracy in the pricing process, particularly for government contracts.

Certified Cost or Pricing Data includes detailed information about the costs that a contractor expects to incur in the performance of the contract. This data must be accurate, complete, and current, allowing the CO to evaluate the proposed prices effectively. By presenting this information, the contractor helps the CO assess the fairness of the pricing, reducing the risk of paying more than necessary.

The other options, while related to financial aspects of contracting, do not fulfill TINA's requirements in the same way. Financial Statements provide an overall picture of a company's financial health but do not specifically address the pricing data required for contract negotiations. Profit Margins, while important for understanding a contractor's potential profitability, are not sufficient by themselves for determining cost fairness or reasonableness in the context of TINA. Cost Proposals can include a range of information, but they need to be formally certified to meet TINA standards, which is where Certified Cost or Pricing Data comes into play.