In Livingston Powdered Metal, Inc. v. NLRB, 669 F.2d 133 (3d Cir. 1982), we held that in the circumstances of that case only "good cause" would excuse the company's failure to file a timely answer.
Distinguishing between the "good cause" standard found in NLRB regulations and the "extraordinary circumstances" standard in section 10(e) of the National Labor Relations Act and noting that "`good cause' . . . appears to be less stringent than . . . `extraordinary circumstances'"
In Kessler Institute for Rehabilitation v. NLRB, 669 F.2d 138 (3d Cir. 1982) the court interpreted how the three-day enlargement time for filing exceptions is calculated.