The United Way of Snohomish County is organizing its 19th annual Days of Caring, the largest volunteer event in the county, for Friday, Sept. 21, and Saturday, Sept 22.

The deadline to register projects is Aug. 31. Volunteers will have until Sept. 12 to sign up for projects.

Local agencies and nonprofits are encouraged to register their projects online at www.uwsc.org/daysofcaring.php. Projects are also being listed on Twitter using the hashtag #uwscdoc12.

In 2011, more than 1,200 volunteers participated in 73 projects at 34 agencies across the county. Volunteers completed household chores for a disabled man in Marysville, helped paint a playground in Mukilteo, cleared land to build homes for low-income families in Monroe, and harvested fresh produce at community gardens in Everett and Snohomish to help stock local food banks.

Several nonprofits have already posted projects online. These include the N.O.A.H Animal Adoption and Spay/Neuter Center, and Pilchuck Glass School in Stanwood; Page Ahead, Full Life Care, the Everett Food Bank, Friends of the Olde Everett Train Station, and Families and Friends of Missing Persons and Violent Crime Victims in Everett; the Senior Housing Assistance Group in Lynnwood and Edmonds; Clothes for Kids in Lynnwood; the Zion Lutheran School in Lake Stevens and Northshore Senior Center in Bothell.

For more information, log onto www.uwsc.org/daysofcaring.php or call 425-374-5549.