On December 17, 1998, the EPA published a proposal to identify ten additional ozone areas where the 1-hour standard is no longer applicable. The 30-day comment period ended on January 19, 1999. A total of six comment letters were received in response to the proposal. This final rule summarizes the comments, includes responses, and finalizes the determination that the 1-hour standard no longer applies for ten additional areas identified in this final rule. Furthermore, today's final rule stops any sanctions or Federal implementation plan (FIP) clocks that may have been started in these ten areas and that related to the planning requirements of section 182. With finalization of this rule, the Code of Federal Regulations (CFR) is amended to reflect such changes. On July 18, 1997, EPA provided by rule that the 1-hour ozone standard would no longer apply to an area based on an EPA determination that the area has attained that standard. Since the 1- hour standard no longer applies to these areas, designations for that standard also no longer apply. The 1-hour standard and designations for that standard will continue to apply to areas for which EPA has not made a determination through rulemaking. The EPA has promulgated final rules regarding the applicability of the 1-hour standard for other areas on June 5, 1998 and July 22, 1998. The ten additional areas identified in today's final rule where EPA has determined the 1-hour standard no longer applies, based on the most recent air quality data available from 1996-1998, are: Boston-Lawrence-Worcester (E.MA), Massachusetts-New Hampshire; Memphis, Tennessee; Muskegon, Michigan; Portland, Maine; Portsmouth-Dover-Rochester, New Hampshire; Providence (All RI), Rhode Island; Allegan County, Michigan; Oceana County, Michigan; Mason County, Michigan; Door County, Wisconsin.