In the LIX Legislature, Hinojosa sat on the Budgeting and Public Account Commission, as well as the Finance and Public Credit Commission and the Special Commission for the Burgos Region Basin. He actively participated in the integration of the Federation Expenditure Budget decrees, which included important measures to enhance transparency and efficiency in public spending, more government spending austerity, and federalism. During his term, more resources were allocated to the fisheries and agriculture sector, as well as to road and highway infrastructure. In April 2004, he formulated and presented in Congress the bill for a new Federal Budget Law, which served as the basis for the enactment of the current Budget and Finance Responsibility Federal Law.