Recommended Practice: Lighting Educational Facilities
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ANSI/IES RP-3-26
Document Type: Recommended Practice (RP)
Available as a downloadable secure PDF only.
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Product Description
Intended Audience: Architects, engineers, lighting designers, school and university staff.
Intended Interest Categories: Specifier (US), Affected (UA), Public Interest (UP), Academic, Research (GAR), Government, Regulatory (GGR), General SME (GSME), Organizational (OM).
Description: Best practices to light classrooms and corridors, the many types of spaces in grade schools, high schools, and colleges including assembly halls, theaters, wet and dry labs, trade shops for woodworking or auto repair, and social spaces such as cafeterias and student and faculty lounges. The 2026 revision includes updates and additions for Daylighting, Controls, and new images. The changes harmonize this standard with ANSI/IES RP-1-25.
Page count: 53 pages
Publisher: Illuminating Engineering Society (2026)
SKU: ANSI/IES RP-3-26
ISBN: 978-0-87995-514-4
Previous edition: RP-3-20
Chapters:
- 1.0 Introduction and Scope
- 2.0 Principles of Quality Lighting
- 3.0 Visibility
- 4.0 Daylighting
- 5.0 Lighting Equipment
- 6.0 Luminaire Classification, Selection, and Considerations for Educational Facilities
- 7.0 Energy, Maintenance, and Economics
- 8.0 General Considerations for Lighting Educational Facilities
- 9.0 Lighting Criteria
- 10.0 Lighting Design Guidance by Area or Application
- 11.0 Controls
- Annex A – Illuminance Recommendations
- Annex B – Measurement of Lighting Performance
Citation Format:
Illuminating Engineering Society. ANSI/IES RP-3-26, Recommended Practice: Lighting Educational Facilities. New York: IES; 2026.