The Central California Blood Center challenges members of Rotary Clubs in Fresno County to go to Fresno donor centers from now through February 18 to help their club win the Rotary Challenge.

The club with the highest percentage of donations wins the engraved perpetual plaque.

Fresno County is located in the Central Valley south of Stockton and north of Bakersfield. As of the 2010 census, it is the tenth most populous county in California with a population of 930,450 and the sixth largest in size with an area of 6,017.4 square miles (15,585 km2). The county seat is city of Fresno. In 2009, Fresno was the fifth largest city in California.

Donors receive a Service above Self T-shirt. Rotarians, families, friends, and any members of the community may take part in the challenge and by naming a club to support when registering at the centers, also at 1010 N. Perrin or 3445 N. First St.