What type of regulations can be found in the FAR Appendix?

The choice of cost accounting preambles and standards as found in the FAR Appendix is correct because this section is specifically dedicated to providing guidance and standards related to the accounting practices that contractors must follow when bidding for government contracts. This includes principles and procedures that govern the way costs are measured, assigned, and allocated, ensuring that federal funds are used responsibly and transparently.

Cost accounting standards are critical for maintaining uniformity and consistency across federal procurements, allowing the government to ensure that contractors comply with regulations that control the pricing of contracts and claims. The FAR's focus on these standards helps protect the government's interests while providing a framework that contractors must navigate when managing contract costs.

Other options, while related to federal procurement, do not pertain specifically to the contents of the FAR Appendix as accurately as option B. Regulations on contractor qualifications, policies for federal procurement, and methods for contract award are essential components of the FAR but are typically covered in other sections of the regulation rather than the appendix.