141.This section defines, for the purpose of this Part of the Act, the expression “historical record” as a record which is 30 years old, counting from the calendar year following that in which it was created. Where records are kept in a file, the period of 30 years (and any other period defined in section 58) is reckoned from the calendar year following that in which the most recent record was created.
The Act – Section by Section Part 5 – Historical records Section 57 – The expression “historical record”