On November 10, 2003, EPA promulgated national emission standards for hazardous air pollutants (NESHAP) for miscellaneous organic chemical manufacturing under the authority of section 112 of the Clean Air Act (CAA). We are amending the NESHAP by clarifying the compliance requirements for flares and the alternative standard, which limits the outlet concentration to 20 parts per million. We are amending the NESHAP by extending the vapor balancing alternative to cover transfers from barges to storage tanks, amending the procedures for correcting measured concentrations at the outlet of combustion devices to correct for dilution by supplemental gas, and clarifying the signature requirements for the notification of compliance status report. The direct final rule amendments also specify requirements for effluent from control devices, clarify the definition of the term continuous process vent, and correct several referencing and drafting errors. We are issuing the amendments by direct final rule, without prior proposal, because we view the revisions as noncontroversial and anticipate no adverse comments. In the Proposed Rules section of this Federal Register, we are publishing a separate document that will serve as the proposal in the event that timely adverse comments are received.