The annual "Heroes Behind The Badges" Blood Drive begins on Thursday.
For the 18th year, Sioux Falls Fire Rescue and the Sioux Falls Police Department are out for blood. Of course, it is for a friendly blood drive competition.
You are asked to go to either Sanford's or Avera McKennan's blood donor rooms and designate your blood donation to the department of their choice.
The department with the most donations will give $350 to a charity of their choice. The other department will give $150 to charity. So you are asked to help either the Sioux Falls Police Department or the Fire Department.
The competition runs until Saturday, January 4.
Last year, the Sioux Falls Police Department won the blood drive. The police department had 519 donations and fire rescue had 495 donations.