本文报告了与《安全饮用水法》颁布或提议的规则相关的最新发展，如铅和铜规则、第五阶段规则、消毒剂/消毒副产品规则（包括强化地表水处理规则和信息收集规则）、放射性核素规则和硫酸盐规则。此外，还将审查预计将更新分析方法、重新确立监管优先事项和简化现行法规修订的新规则。包括56个参考文献和表格。

This article reports the current developments related to rules promulgated or proposed under the Safe Drinking Water Act, such as the Lead and Copper Rule, Phase V Rule, the Disinfectants/Disinfection By-Products Rule (including the Enhanced Surface Water Treatment Rule and the Information Collection Rule), the Radionuclides Rule, and the Sulfate Rule. Anticipated new rules that will update analytical methods, reestablish regulatory priorities, and streamline revisions to current regulations are reviewed as well. Includes 56 references, tables.