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About
Our Organization
About the IES
Diversity & Inclusion
Society Awards
Administration
IES Staff
IES Board
IES Committees
Information
Newsroom
Annual Report
Resources
Membership
Membership
Join
Committees & Panels
Sustaining Membership
Emerging Professionals
University Program
Member Directory
Section Directory
Global Access Affiliate Program
Section Resources
Volunteer Opportunities
Philanthropic Donations
Events
Information
Events Calendar
Sponsorship
IES Progress Report
Featured Events
Light + Justice Symposium
IES24 Conference
Street & Area Lighting Conference
Research Symposium
Special Events
Light for Life®: Museum Symposium
Illumination Awards & Gala
Lighting Education Tour
Aviation Lighting Conference
Research & Education
Research
About IES Research
Publications
FIRES Forum
Past Projects
IES Lighting Ready Reference App
Education
eLearning Portal
Upcoming Webinars
Request IES CEU/AIA-LUs
LC Study Group
No upcoming webinar events found.
Standards
Standards
Purchase Standards
Browse Standards
Nomenclature & Definitions
Standards Errata & Addenda
Information
Standards Newsletter
Standards Process
Standards in Public Review
Toolbox
IES Standards Toolbox
My Lighting Library
My Illuminance Selector
My Reference Retriever
LD+A
Store
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Billy E. Tubb
