Industry Resources

Workforce Protective Leagues

The craft of glassmaking has been a part of America’s manufacturing heritage since Colonial Jamestown was established in 1608. Today, there are 20,000 skilled workers employed by glass container manufacturing companies across 45 plants in 22 states.

The Glass Packaging Institute values the contribution of this workforce and what it means to local, state and national economies. Their ideas, energy and commitment are key to a quality packaging product, one made from all-natural, readily-available domestic raw materials.

We are proud to work on behalf of the men and women of the glass container manufacturing industry and the member companies that employ them. We will be sharing information and ideas with League members at regional and national gatherings throughout the country, as well as on this section of the web site.

Longtime California Glass Container Worker Shares Industry Perspective, Charles "Animal" McIntyre, Past WCPL President, Gallo Glass Company

Industry Workforce Members Reflect on the Value of the Glass Container Manufacturing

Central States Protective League Summer Meeting - GPI 1-Pager, July 2017

GMP-IU Provides Massachusetts Legislators Testimony Against Bottle Bill Repeal, June 12, 2017

O-I Workforce Letters Urging Caution on Cap and Trade Program Revisions, 2nd Letter, April 3, 2017

Central States Protective League Opposes Repeal of Iowa's Bottle Bill Program, February 27, 2017

Upcoming 2017 Protective League Meetings

Multi-State Protective League (National) Meeting - Hosted by the West Coast Protective League
August 24-26, 2017
Sheraton Park Hotel
1855 S Harbor Blvd 
Anaheim, CA 92802
 714-750-1811 - $119 per night - Hotel Reservation Deadline is Monday, July 24th.
A hospitality session is being planned for Thursday, with a potential plant tour on Friday. The business meeting will be on Saturday, 9 am - 12 Noon
For complete information on the meeting, please view the invitation letter.
Southwest Protective League Fall Meeting
October 5-8, 2017
Bossier City, LA
Industry Presentations scheduled for Friday, October 6th (Formal Invitation and Reservation Details TBD)

Central States Protective League Issues Strong Statement of Support for Iowa's Beverage Container Recycling Refund Program, May 24th, 2016

Glass Container Industry Workforce Highlights Glass Bottle Craftmanship in Video Promoted at the 2016 Craft Brewers Conference, April 10, 2016

Thank You Letter to Indianapolis Mayor Joe Hogsett, March 29, 2016

GPI Presentation at the West Coast Protective League Spring MeetingMarch 12, 2016

GMP Supports Maryland Senate Bill 367, to Create a Beverage Container Recycling Refund Program and Improve Glass Recycling, February 10, 2016

GPI's GlassWorks is a publication that highlights the glass container industry workforce and company efforts.

GlassWorks - July 2017

GlassWorks - February 2017

GlassWorks - June 2016

GlassWorks - December 2015 

GlassWorks - July 2015

GPI Presentation at the 2015 GMP-IU Multi-State Protective League MeetingSeptember 25, 2015

GMP members talk about their experiences with policymakers and other stakeholders on the benefits of a strong glass container manufacturing industry.




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About GPI »

Through GPI, glass container manufacturers speak with one voice to advocate industry standards, promote sound environmental and recycling policies, and educate packaging professionals. Learn More