美国国会已经提出了几项法案，以重新授权《安全饮用水法案》（SDWA），预计还会有更多法案出台。在许多问题上意见分歧很大，这导致了一场激烈的政治斗争。理论上，法案中的任何事情都可以改变。实际上，只有在政治进程中幸存下来的变化才会发生。本文概述了SDWA再授权，并对涉及的问题进行了评述。包括18个参考文献和表格。

Several bills have been introduced in the US Congress to reauthorize the Safe Drinking Water Act (SDWA), and more are expected. Views differ significantly on many issues, which is resulting in an intense political battle. In theory, anything and everything in the act could be changed. In reality, only changes that survive the political process will be made. An overview of SDWA reauthorization is presented in this article, and the issues involved are reviewed. Includes 18 references, tables.