导致正式液体火箭发动机认证（USAF）或认证（NASA）的当前设计和开发实践将无法实现未来项目的具体可靠性目标。在成本受限的采购环境下，新的火箭发动机项目同时规定了高可靠性的量化要求。目前的方法无法及时或以成本效益高的方式对这些规定的可靠性水平进行必要的验证。因此，需要并开发出一种新的改进工艺。这种新的可靠性认证方法将在本文件的五个部分中详细讨论。 本报告的主要目的是:a.定义并说明该过程；b、 指出其优势和劣势；c.为其在具有特定可靠性要求的程序上的应用提供指南。

Current design and development practices leading to formal liquid rocket engine qualification (USAF) or certification (NASA) will not achieve the specific reliability objectives of future programs. New rocket engine programs are dictating quantified requirements for high reliability in parallel with a cost-constrained procurement environment. These specified reliability levels cannot be validated with the necessary confidence in a timely or cost-effective manner by present methods. Therefore, a new improved process is needed and has been developed. This new reliability certification method will be discussed in detail in the five sections that comprise this document. Primary purposes of this report are to: a. define and illustrate this process; b. point out its strengths and weaknesses; and c. provide guidelines for its application on programs which have specified reliability requirements.