本文讨论了美国环境保护局（U.S.Environmental Protection Agency）在实施《国家初级饮用水临时法规》中取得的经验，以及目前正在评估的纳入修订后的《初级饮用水法规》的考虑因素。讨论了以下主题:制定经修订的初级饮用水法规的监管程序；继续高度重视饮用水质量；实施与监测和报告违规行为以及相关水质和管理问题相关的NIPDWR；修订后的法规中涉及的问题和领域，包括小型系统的合规性、污染物的潜在健康影响、更灵活和更具体的监测要求、违规的公共通知、非公共水系统监测要求，以及重新设计监测要求，以评估腐蚀的发生- 产品和人类暴露在配送系统各个部分的污染物中。综述了当前与挥发性有机化学品、合成有机化学品、无机化学品、微生物、放射性核素和消毒副产品有关的行动。提出了修订条例的编制时间表。包括表格，如图所示。

This article discusses the U.S. Environmental Protection Agency's experiences gained from implementation of the National Interim Primary Drinking Water Regulations and current considerations being evaluated for incorporation into the revised primary drinking water regulations. The following topics are addressed: the regulatory procedure for establishing revised primary drinking water regulations; the continued high priority of drinking water quality; implementation of NIPDWR relating to monitoring and reporting violations, and to related water quality and management problems; issues and areas of concern being addressed in the revised regulations including compliance by small systems, potential health effects of contaminants, more flexible and more specific monitoring requirements, public notification of violation, noncommunity water system monitoring requirements, and redesigning monitoring requirements to assess the occurrence of corrosion by-products and human exposure to contaminants from various parts of the distribution system. Current actions relating to volatile organic chemicals, synthetic organic chemicals, inorganic chemicals, microbials, radionuclides, and disinfection by-products are reviewed. A schedule for production of the revised regulations is presented. Includes tables, figure.