X0101 EFFECT 33 LIVE 2007-12-17 15:15:00

N-1A

0001413032 RiverSource Variable Series Trust 333-146374 S000019838 RiverSource Variable Portfolio Balanced Fund C000055675 RiverSource VP Balanced Fund S000019839 RiverSource Variable Portfolio Global Inflation Protected Securities Fund C000055676 RiverSource VP Global Inflation Protected Securities Fund S000019840 RiverSource Variable Portfolio Growth Fund C000055677 RiverSource VP Growth Fund S000019841 RiverSource Variable Portfolio High Yield Bond Fund C000055678 RiverSource VP High Yield Bond Fund S000019842 RiverSource Variable Portfolio Income Opportunities Fund C000055679 RiverSource VP Income Opportunities Fund S000019843 RiverSource Variable Portfolio International Opportunity Fund C000055680 RiverSource VP International Opportunity Fund S000019844 RiverSource Variable Portfolio Large Cap Equity Fund C000055681 RiverSource VP Large Cap Equity Fund S000019845 RiverSource Variable Portfolio Large Cap Value Fund C000055682 RiverSource VP Large Cap Value Fund S000019846 RiverSource Variable Portfolio Mid Cap Growth Fund C000055683 RiverSource VP Mid Cap Growth Fund S000019847 RiverSource Variable Portfolio Mid Cap Value Fund C000055684 RiverSource VP Mid Cap Value Fund S000019848 RiverSource Variable Portfolio S&P 500 Index Fund C000055685 RiverSource VP S&P 500 Index Fund S000019849 RiverSource Variable Portfolio Cash Management Fund C000055686 RiverSource VP Cash Management Fund S000019850 RiverSource Variable Portfolio Select Value Fund C000055687 RiverSource VP Select Value Fund S000019851 RiverSource Variable Portfolio Short Duration U.S. Government Fund C000055688 RiverSource VP Short Duration U.S. Government Fund S000019852 RiverSource Variable Portfolio Small Cap Advantage Fund C000055689 RiverSource VP Small Cap Advantage Fund S000019853 RiverSource Variable Portfolio Small Cap Value Fund C000055690 RiverSource VP Small Cap Value Fund S000019854 RiverSource Variable Portfolio Core Bond Fund C000055691 RiverSource VP Core Bond Fund S000019855 RiverSource Variable Portfolio Core Equity Fund C000055692 RiverSource VP Core Equity Fund S000019856 RiverSource Variable Portfolio Diversified Bond Fund C000055693 RiverSource VP Diversified Bond Fund S000019857 RiverSource Variable Portfolio Diversified Equity Income Fund C000055694 RiverSource VP Diversified Equity Income Fund S000019858 RiverSource Variable Portfolio Emerging Markets Fund C000055695 RiverSource VP Emerging Markets Fund S000019859 RiverSource Variable Portfolio Fundamental Value Fund C000055696 RiverSource VP Fundamental Value Fund S000019860 RiverSource Variable Portfolio Global Bond Fund C000055697 RiverSource VP Global Bond Fund