34 CFR § 300.11 - Day; business day; school day.

---
identifier: "/us/cfr/t34/s300.11"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "34 CFR § 300.11 - Day; business day; school day."
title_number: 34
title_name: "Education"
section_number: "300.11"
section_name: "Day; business day; school day."
chapter_name: "OFFICE OF SPECIAL EDUCATION AND REHABILITATIVE SERVICES, DEPARTMENT OF EDUCATION"
part_number: "300"
part_name: "ASSISTANCE TO STATES FOR THE EDUCATION OF CHILDREN WITH DISABILITIES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "20 U.S.C. 1221e-3, 1406, 1411-1419, and 3474; Pub. L. 111-256, 124 Stat. 2643; unless otherwise noted."
regulatory_source: "71 FR 46753, Aug. 14, 2006, unless otherwise noted."
cfr_part: "300"
---


# 300.11 Day; business day; school day.

(a) *Day* means calendar day unless otherwise indicated as business day or school day.

(b) *Business day* means Monday through Friday, except for Federal and State holidays (unless holidays are specifically included in the designation of business day, as in § 300.148(d)(1)(ii)).

(c)(1) *School day* means any day, including a partial day that children are in attendance at school for instructional purposes.

(2) *School day* has the same meaning for all children in school, including children with and without disabilities.

(Authority: 20 U.S.C. 1221e-3)