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Master Recycler Composter

King County's Master Recycler Composter (MRC) program is an adult education program that provides a free annual training and tools to help residents reduce waste in their communities. Education efforts such as the MRC program play an important role in helping citizens reduce waste.

The MRC training and volunteer outreach opportunities focus on encouraging food waste prevention at home and residential curbside composting through King County’s Food: Too Good To Waste and Compost More, Waste Less campaigns, respectively.

Training topics include:

  • Local solid waste stream and management systems
  • Acceptable recyclable items, including food scraps and food-soiled paper
  • Food waste prevention through smart shopping, storage and preparation
  • Solid waste impacts on climate change
  • Effective public outreach and education skills.

The MRC program training is open to all King County adult residents living outside the cities of Seattle and Milton. In exchange for the free training, MRC program graduates commit to volunteer 25 hours for public outreach at community events planned by county employees and an independent project in their community. MRCs volunteer in a variety of settings including tabling at farmer's markets and community festivals and sharing information with coworkers at a lunch presentation or through a workshop with neighbors or friends. Most tabling outreach occurs on weekends and many events will take place in south King County.

The application period is now closed. Please check this website in mid-April 2017 for an announcement about 2017 plans.

Related Information

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[+] EnlargeMRC’s provide outreach at Kent Cornucopia Days.

MRC providing Recycle More outreach at Kent Cornucopia Days.


Seattle or Eastside Resident?

If you live in the City of Seattle, you can help reduce waste by becoming a Master Composter/Soil Builder. For Eastside residents, consider joining Seattle Tilth’s Master Recycler Composter Eastside program. For information about both programs, visit


Updated: Jan. 12, 2017

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