29 CFR § 4221.12 - Calculation of periods of time.

---
identifier: "/us/cfr/t29/s4221.12"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "29 CFR § 4221.12 - Calculation of periods of time."
title_number: 29
title_name: "Labor"
section_number: "4221.12"
section_name: "Calculation of periods of time."
chapter_name: "PENSION BENEFIT GUARANTY CORPORATION"
subchapter_number: "I"
subchapter_name: "WITHDRAWAL LIABILITY FOR MULTIEMPLOYER PLANS"
part_number: "4221"
part_name: "ARBITRATION OF DISPUTES IN MULTIEMPLOYER PLANS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "29 U.S.C. 1302(b)(3), 1401."
regulatory_source: "61 FR 34109, July 1, 1996, unless otherwise noted."
cfr_part: "4221"
---


# 4221.12 Calculation of periods of time.

The PBGC applies the rules in subpart D of part 4000 of this chapter to compute any time period under this part.

[68 FR 61356, Oct. 28, 2003]