Notwithstanding subdivision (a) of Section 2.00 of the Budget Act of 2002 and any other provision of law, commencing with the appropriation for the 2002–03 fiscal year, and for each fiscal year thereafter, any amount appropriated to the department for the Cancer Research Program shall be available, for purposes of that program, for encumbrance for one fiscal year beyond the year of appropriation and for expenditure for three fiscal years beyond the year of encumbrance.