The Office of General Counsel of the National Labor Relations Board issued a Memorandum, GC-20-01, requiring the e-filing of all affidavits, correspondence, position statements, documentary or other evidence in connection with unfair labor practice or representation cases. The initial filing of an unfair labor practice or the representation petition, however, may still be made by regular mail, personal delivery or facsimile, although the Board encourages use of the e-filing system for these initial filings