In this subtitle, time periods refer to calendar days unless otherwise indicated. For purposes of service of any document filed before the Board, absent any evidence to the contrary, it is presumed that any document served by U.S. mail was received by the addressee 3 business days after the date the document was mailed. A 3-day period shall be added to any time period in which service was affected by mail. A time period is computed beginning with the day after the act or event which initiates the period and concludes with the last day of the period. A time period which would otherwise end on a weekend, State holiday, or day the State is closed for business instead ends on the following business day. For time periods of fewer than 10 days, weekend days, State holidays, and days the State is closed for business do not count in computing the time period. The Board or the Executive Director may extend a time period not prescribed by statute. This may happen: Before the initial time period ends, without motion or notice, if good cause for the extension is shown; and After the initial time period ends, upon written motion filed with the Executive Director, if the failure to act was the result of excusable neglect or good cause. State Government Article, §22-306(e), Annotated Code of Maryland Effective date: April 1, 2002 (29:6 Md. R. 568) Regulation .02D adopted as an emergency provision effective December 23, 2002 (30:13 Md. R. 851); adopted permanently effective September 29, 2003 (30:19 Md. R. 1334) Regulation .18 adopted as an emergency provision effective September 30, 2002 (30:13 Md. R. 852); adopted permanently effective September 29, 2003 (30:19 Md. R. 1334) Chapter revised effective March 13, 2006 (33:5 Md. R. 522) Regulation .03E adopted effective February 11, 2008 (35:3 Md. R. 289) Regulation .09-1 adopted effective October 22, 2007 (34:21 Md. R. 1917) Regulation .09-1 repealed and new Regulation .09-1 adopted effective February 11, 2008 (35:3 Md. R. 289) Regulation .13 amended effective October 22, 2007 (34:21 Md. R. 1917) Regulation .17A amended effective July 11, 2022 (49:14 Md. R. 704) Regulations .01—.17 under State Higher Education Labor Relations Board, Elections repealed and new Regulations .01—.04 under Public Employee Relations Board, Computation of Time Periods adopted effective May 13, 2024 (51:9 Md. R. 441)