On January 25, 1995, the EPA issued national emission standards for hazardous air pollutants (NESHAP) under Section 112 of the Clean Air Act as amended by the Clean Air Act Amendments of 1990, for Hard and Decorative Chromium Electroplating and Chromium Anodizing Tanks. The NESHAP requires existing and new major and area sources to control emissions of hazardous air pollutants using the maximum achievable control technology (MACT). Today's action revises the compliance date for some of the sources subject to this standard. Specifically, this action extends the monitoring, reporting, and recordkeeping (MRR) requirements for hard chromium electroplaters and chromium anodizing operations in California from a January 25, 1997 compliance deadline to a July 24, 1997 compliance date. The EPA is promulgating these revisions as an interim final regulation and is requesting comments on the revisions. The revisions will be in effect during the interim period while EPA receives, reviews, and responds to any comments.