- Lake Yellowstone Hotel is also listed on the Green Seal website as a certified property.
- Green Seal Standards (the GS-33 2014 checklist details the requirements for all levels of certification.)
- Call (202)872-6400 for more information, or visit www.GreenSeal.org for the GS-33 criteria and links to all Green Seal standards and certified products and services. You may also contact:Linda Chipperfield
Vice President, Marketing & Outreach
Green Seal, Inc.