(a) General. The principal office of the Commission, at 100 F Street, NE., Washington, DC 20549, is open each day, except Saturdays, Sundays and federal holidays, from 9 a.m. to 5:30 p.m., Eastern Standard Time or Eastern Daylight Saving Time, whichever is currently in effect, provided that the hours for the filing of documents with the Commission are as set forth in paragraphs (b) and (c) of this section.

(b) Submissions made in paper. Paper documents filed with or otherwise furnished to the Commission may be submitted to the Commission each day, except Saturdays, Sundays and federal holidays, from 8 a.m. to 5:30 p.m., Eastern Standard Time or Eastern Daylight Saving Time, whichever is currently in effect.

(c) Electronic filings. Filings made by direct transmission may be submitted to the Commission each day, except Saturdays, Sundays and federal holidays, from 8 a.m. to 10 p.m., Eastern Standard Time or Eastern Daylight Saving Time, whichever is currently in effect.