On June 19, 1998, EPA published the Revised Standards for Hazardous Waste Combustors Final Rule and on September 30, 1999 published the Hazardous Waste Combustors NESHAP Final Rule. In today's action we are clarifying our intention associated with the Notification of Intent to Comply and Progress Report requirements of the 1998 rule. Additionally, we are correcting a typographical error in the comparable fuels specification table and an omission pertaining to residue testing requirements in the 1999 final rule.