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King County is committed to procuring goods and services which balance fiscal responsibility, social equity, and environmental stewardship. When available, we specify products designated with an "ecolabel" that meet environmental standards and certifications. Beyond purchasing established products, we seek out innovative products and services which help lessen our environmental impacts.

Tips for Success

Understand what sustainable attributes we look for when purchasing goods and services in our Sustainable Purchasing Guide.

Find out which products and services we have green contracts for in our Awarded Contracts List, which denotes contracts with sustainable attributes.

See King County's Sustainable Policies here.

When purchasing goods and services, we prioritize ecolabels recommended by the U.S. Environmental Protection Agency (EPA) and those accredited by third-party organizations. Find the standards and certifications we look to on our Resources page.

EnviroStars offers resources and recognition for green business practices and links to local environmental programs and incentives that can help.

Small Contractors and Suppliers (SCS) certification makes your small business eligible for special considerations.

Submit your sustainable product or service to one of King County's open solicitations.

Do you have an innovative sustainable good or service you want to share with us? Contact our Sustainable Purchasing Program Manager, Karen Hamilton, at:

King County looks for products and services that save the County money and reduce its impact on the environment.

Resource-Efficient Purchases

  • LED lighting
  • ENERGY STAR-certified appliances
  • Alternative fuels
  • Alternative fuel vehicles
  • FSC-certified wood


Recycled-Content Purchases

  • 100% recycled-content copy paper
  • Re-refined, bio-based or long life lubricants and motor oils
  • EPEAT-certified computers and electronics
  • Biosolids compost
  • Remanufactured toner cartridges
  • Recycled asphalt
  • Recycled concrete
  • Yard waste compost
  • Recycled-content janitorial paper products

Reduced-Toxicity Purchases

  • Green cleaners
  • BIFMA Level certified furniture with low VOC’s
  • Low VOC paint
  • Low GHG cement alternatives
  • Integrated pest management services


The South Treatment Plant retrofit lighting project replaced over 4,000 of the plant’s lamps with LED and induction lighting technologies. The project is reducing electricity use by over 800,000 kWh and saves over $60,000 per year.
Using waterless car washing services, King County’s Fleet Administration saves over 30 gallons of water per wash. In 2017, these services conserved over 23,000 gallons of water.
The Bow Lake Recycling and Transfer Station earned a LEED NC v2.1 Platinum certification. The overall achievements in the LEED Materials and Resources category include:
  • 26.4 percent of materials included recycled content
  • 59 percent of material locally sourced and extracted within 500 miles of the site
  • 90 percent of all new wood purchased was FSC certified

Have questions or an idea for a green product or service you think we should hear about?

King County relies on environmental standards and certifications where they are available, and we look to businesses to partner with us and help us innovate.

For more information, contact our Sustainable Purchasing Program Manager, Karen Hamilton, at:
Contact Us

Phone: (206) 263-9400

TTY Relay: 711

Fax: (206) 296-7676