Federal Acquisition Regulation: Policies and Procedures

Identify the different words and terms used to describe contracts; identify the policies and procedures pertaining to selecting contract types, fixed-price contracts, cost-reimbursement contracts, incentive contracts, and time-and-materials, labor-hour, and letter contracts.
200 to 300 original wordings please.  Please site in accordance with FAR regulation (for example:  IAW FAR 13.106-1(b)(1) ).  Thank you.