In an application for certification, the Board had to determine whether membership evidence was filed on or before the terminal date.
The union representative deposited the documents at the Post Office on the terminal date, but after the last dispatch time, resulting in the envelope being date-stamped for the following day.
The Board ruled that depositing the envelope with the postal clerk, who numbered it and placed it in the vault, constituted mailing by registered mail on that date.
Therefore, the evidence was filed on time.