S. RES. 41 allows the Sergeant at Arms and Doorkeeper of the Senate to organize blood donation drives every three months during the 119th Congress. The resolution specifies that the Sergeant at Arms will choose the dates and locations for these events, working with Senate's...
Simple Explanation
The Senate wants to have events where people can give blood every few months to help others, and a special helper in the Senate will decide the best times and places to do this. They will also pick the groups that help with blood donations, but they need to ask some other Senate members for advice before making decisions.