# 29 C.F.R. § 18.201 (2026): Official notice of adjudicative facts

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_201

## Section

- **Citation:** 29 C.F.R. § 18.201 (2026)
- **Heading:** Official notice of adjudicative facts
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 29 CFR: Labor / Part 18: RULES OF PRACTICE AND PROCEDURE FOR ADMINISTRATIVE HEARINGS BEFORE THE OFFICE OF ADMINISTRATIVE LAW JUDGES / Subpart B: Rules of Evidence / § 18.201: § 18.201   Official notice of adjudicative facts.

## Text

(a)
Scope of rule.
This rule governs only official notice of adjudicative facts.
(b)
Kinds of facts.
An officially noticed fact must be one not subject to reasonable dispute in that it is either:
(1) Generally known within the local area,
(2) Capable of accurate and ready determination by resort to sources whose accuracy cannot reasonably be questioned, or
(3) Derived from a not reasonably questioned scientific, medical or other technical process, technique, principle, or explanatory theory within the administrative agency's specialized field of knowledge.
(c)
When discretionary.
A judge may take official notice, whether requested or not.
(d)
When mandatory.
A judge shall take official notice if requested by a party and supplied with the necessary information.
(e)
Opportunity to be heard.
A party is entitled, upon timely request, to an opportunity to be heard as to the propriety of taking official notice and the tenor of the matter noticed. In the absence of prior notification, the request may be made after official notice has been taken.
(f)
Time of taking notice.
Official notice may be taken at any stage of the proceeding.
(g)
Effect of official notice.
An officially noticed fact is accepted as conclusive.

## Nearby sections

- [29 C.F.R. § 18.101 (2026) § 18.101   Scope.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_101.md)
- [29 C.F.R. § 18.102 (2026) § 18.102   Purpose and construction.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_102.md)
- [29 C.F.R. § 18.103 (2026) § 18.103   Rulings on evidence.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_103.md)
- [29 C.F.R. § 18.104 (2026) § 18.104   Preliminary questions.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_104.md)
- [29 C.F.R. § 18.105 (2026) § 18.105   Limited admissibility.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_105.md)
- [29 C.F.R. § 18.106 (2026) § 18.106   Remainder of or related writings or recorded statements.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_106.md)
- [29 C.F.R. § 18.201 (2026) § 18.201   Official notice of adjudicative facts.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_201.md)
- [29 C.F.R. § 18.301 (2026) § 18.301   Presumptions in general.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_301.md)
- [29 C.F.R. § 18.302 (2026) § 18.302   Applicability of state law.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_302.md)
- [29 C.F.R. § 18.401 (2026) § 18.401   Definition of relevant evidence.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_401.md)
- [29 C.F.R. § 18.402 (2026) § 18.402   Relevant evidence generally admissible; irrelevant evidence inadmissible.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_402.md)
- [29 C.F.R. § 18.403 (2026) § 18.403   Exclusion of relevant evidence on grounds of confusion or waste of time.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_403.md)
- [29 C.F.R. § 18.404 (2026) § 18.404   Character evidence not admissible to prove conduct; exceptions; other crimes.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_404.md)
- [29 C.F.R. § 18.405 (2026) § 18.405   Methods of proving character.](https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_405.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T29_P18_S18_201. Check the current official text before relying on it. Not legal advice.