PIERRE, S.D. (AP) â¿¿ South Dakota will be reducing extended unemployment compensation benefits by nearly 17 percent as part of federal budget cuts. The South Dakota Department of Labor and Regulation says the benefits will be reduced by 16.8 percent. It affects all claimants filing for benefits beginning the week of June 2 and ending the week of Sept. 28. The reduction does not affect the 26 weeks of state unemployment benefits. A notice will be mailed to all people who have filed a claim as of May 13.