---
kind: "section"
citation: "43 C.F.R. § 45.3"
title: "43"
number: "45.3"
heading: "How are time periods computed?"
url: "https://uscodex.org/cfr/43/45.3"
---

# §45.3. How are time periods computed?

- (a) **General.** Time periods are computed as follows:
  - (1) **The day of the act or event from which the period begins to run is not included.**
  - (2) **The last day of the period is included.**
    - (i) If that day is a Saturday, Sunday, or Federal holiday, the period is extended to the next business day.
    - (ii) The last day of the period ends at 5 p.m. at the place where the filing or other action is due.
  - (3) If the period is less than 7 days, any Saturday, Sunday, or Federal holiday that falls within the period is not included.
- (b) **Extensions of time.**
  - (1) No extension of time can be granted to file a request for a hearing under [§ 45.21](/cfr/43/45.21.md), a notice of intervention and response under [§ 45.22](/cfr/43/45.22.md), an answer under [§ 45.25](/cfr/43/45.25.md), or any document under [subpart C](/cfr/43/subpartC.md) of this part.
  - (2) An extension of time to file any other document under subpart B of this part may be granted only upon a showing of good cause.
    - (i) To request an extension of time, a party must file a motion under [§ 45.35](/cfr/43/45.35.md) stating how much additional time is needed and the reasons for the request.
    - (ii) The party must file the motion before the applicable time period expires, unless the party demonstrates extraordinary circumstances that justify a delay in filing.
    - (iii) The ALJ may grant the extension only if:
      - (A) It would not unduly prejudice other parties; and
      - (B) It would not delay the decision under [§ 45.60](/cfr/43/45.60.md).

## Notes

### Authority

Authority: 16 U.S.C. 797(e), 811, 823d.

### Source

Source: 80 FR 17194, Mar. 31, 2015, unless otherwise noted.