In Sectoral Committee she is a Member of Justice and Legal Affairs, and Industrialization, Trade, Tourism, Wildlife and Cooperatives.
In Select Committee she is a Member of Public Investment and Account Committee.
Hon. Dorcas Nyambura was the Women Representative of the former NARC Kenya Party, Constituency women Representation in the former P.N.U and is now a T.N.A Member and Member of D.E.B in Kipipiri.
She is the bursary Committee Member at Kipipiri.