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About GPI
Glass and Glass Recycling
- All About Glass
- Glass Recycling
Industry Resources
Media
Drawings & Guides
GPI Programs
- Clear Choice Awards (CCA)
  - 2025 CCA Winners
  - 2023 CCA Winners
- Don't Trash Glass (DTG) Bar & Restaurant Program
  - About DTG
  - Sign Up To DTG
- Student Tours & Lectures
  - GPI Academic Partners
  - Book a Student Tour or Lecture
- Washington State Glass Collection
Glass Workforce
- Workforce Protective Leagues
  - About Workforce Protective Leagues
  - Current League Meetings
  - Meeting Archives
    - 2023-2024
    - 2015-2021
  - Testimonials

About GPI
Glass and Glass Recycling
- All About Glass
- Glass Recycling
Industry Resources
Media
Drawings & Guides
GPI Programs
- Clear Choice Awards (CCA)
  - 2025 CCA Winners
  - 2023 CCA Winners
- Don't Trash Glass (DTG) Bar & Restaurant Program
  - About DTG
  - Sign Up To DTG
- Student Tours & Lectures
  - GPI Academic Partners
  - Book a Student Tour or Lecture
- Washington State Glass Collection
Glass Workforce
- Workforce Protective Leagues
  - About Workforce Protective Leagues
  - Current League Meetings
  - Meeting Archives
    - 2023-2024
    - 2015-2021
  - Testimonials

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Membership Directory - Corporate

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Gregory Leibert

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Glass Packaging Institute

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Arlington, Virginia 22203

Phone: (703) 684-6359

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